Ask your own question, for FREE!
Mathematics 18 Online
OpenStudy (anonymous):

Fan and Medal! The expression is shown below:

OpenStudy (anonymous):

Not sure if it is just me, but I am unable to see your expression : )

OpenStudy (anonymous):

\[6a ^{2} - 5ab + 3b - 12\]

OpenStudy (anonymous):

now do u see it

OpenStudy (anonymous):

The question: What is the- a)Term b)Constant c)Coefficient

OpenStudy (anonymous):

@jim_thompson5910

OpenStudy (anonymous):

sorry to ask the question late i was helping another friend

jimthompson5910 (jim_thompson5910):

the terms are separated by a + or a -

jimthompson5910 (jim_thompson5910):

eg: `x+y-z+w` has four terms: x, y, z, w

jimthompson5910 (jim_thompson5910):

the constant is any term that doesn't have a variable attached. It's a single fixed number

OpenStudy (anonymous):

oh ok so there are 4 terms and 1 constant in the equation

jimthompson5910 (jim_thompson5910):

yes

OpenStudy (anonymous):

but what is coefficient

jimthompson5910 (jim_thompson5910):

coefficients are the numbers in front of the variables

jimthompson5910 (jim_thompson5910):

eg: in `7x`, the 7 is the coefficient

OpenStudy (anonymous):

so there are 3 coefficients in the equation

jimthompson5910 (jim_thompson5910):

yes

OpenStudy (anonymous):

oh ok but its not done

jimthompson5910 (jim_thompson5910):

I should have stated that subtraction is the same as adding a negative so something like `1-2` is the same as `1 + (-2)`

jimthompson5910 (jim_thompson5910):

therefore, \[\Large 6a ^{2} - 5ab + 3b - 12\] is the same as \[\Large 6a ^{2} +(- 5ab) + 3b+( - 12)\]

jimthompson5910 (jim_thompson5910):

in that second form, we see each term is separated by a +

jimthompson5910 (jim_thompson5910):

terms are: 6a^2 -5ab 3b -12

OpenStudy (anonymous):

ok

jimthompson5910 (jim_thompson5910):

I'm sure you can see what the constant is for the coefficients, just list the numbers in front of each variable term

OpenStudy (anonymous):

constant is 12

jimthompson5910 (jim_thompson5910):

6, NEGATIVE 5 3

OpenStudy (anonymous):

y is it -5?

jimthompson5910 (jim_thompson5910):

because the term is -5ab the number in front is -5

jimthompson5910 (jim_thompson5910):

go back to \[\Large 6a ^{2} +(- 5ab) + 3b+( - 12)\]

OpenStudy (anonymous):

oh ok now i get it

jimthompson5910 (jim_thompson5910):

the constant should be -12 for the same reason

OpenStudy (anonymous):

constant=-12 coefficient=6, -5, 3 is that correct?

jimthompson5910 (jim_thompson5910):

yep on all 4

OpenStudy (anonymous):

thnx but its not done

jimthompson5910 (jim_thompson5910):

what else is left?

OpenStudy (anonymous):

they said to simplify 2 more expressions by combining like terms

jimthompson5910 (jim_thompson5910):

which expressions?

OpenStudy (anonymous):

ill show u

OpenStudy (anonymous):

\[a) 5x-3-3x+6y+4\]

jimthompson5910 (jim_thompson5910):

what are a pair of like terms that you see?

OpenStudy (anonymous):

\[b) -8m ^{2} + 9m - 7m ^{2} + n ^{3}\]

OpenStudy (anonymous):

the pair of like terms in the first one?

jimthompson5910 (jim_thompson5910):

yeah do you see any like terms in the first one?

OpenStudy (anonymous):

yes i see two pairs of like terms

jimthompson5910 (jim_thompson5910):

ok one pair is what?

OpenStudy (anonymous):

5x, 3x

jimthompson5910 (jim_thompson5910):

more like 5x and -3x, but you have the right idea

jimthompson5910 (jim_thompson5910):

they would combine to ???

OpenStudy (anonymous):

u mean add?

jimthompson5910 (jim_thompson5910):

yeah, 5x + (-3x) = ??

OpenStudy (anonymous):

it's 2x

jimthompson5910 (jim_thompson5910):

yep

jimthompson5910 (jim_thompson5910):

you'll do the same for the other pair of like terms

OpenStudy (anonymous):

what is the other pair

jimthompson5910 (jim_thompson5910):

you tell me

jimthompson5910 (jim_thompson5910):

look for any terms that have something in common

jimthompson5910 (jim_thompson5910):

for the 5x and -3x, they had an x in common

OpenStudy (anonymous):

is it -3, 4

jimthompson5910 (jim_thompson5910):

yes

OpenStudy (anonymous):

yay

jimthompson5910 (jim_thompson5910):

they add to what?

OpenStudy (anonymous):

is it 1?

jimthompson5910 (jim_thompson5910):

yes

OpenStudy (anonymous):

and then?

jimthompson5910 (jim_thompson5910):

notice how there is only one y term, so there are no like terms for the y terms all of this means `5x−3−3x+6y+4` simplifies to `2x+6y+1`

OpenStudy (anonymous):

oh ok so 2x+6y+1 is the answer or should i evaluate the expression

jimthompson5910 (jim_thompson5910):

if you knew the value of x and y, you could evaluate to get a single number

jimthompson5910 (jim_thompson5910):

but they didn't provide values for x and y

OpenStudy (anonymous):

So for now 2x+6y+1 is the answer, right?

jimthompson5910 (jim_thompson5910):

yes

OpenStudy (anonymous):

Ok thank u very much u dont have to explain the 2 expression because its almost the same as the first expression

jimthompson5910 (jim_thompson5910):

yeah it's very similar so you shouldn't have too much trouble with it

OpenStudy (anonymous):

thats it for today thank u very much dude ur the best

jimthompson5910 (jim_thompson5910):

just keep in mind that terms with \(\Large m^2\) are NOT like terms with \(\Large m^3\) they both have m, but different exponents makes them different and unlike terms

jimthompson5910 (jim_thompson5910):

same with m and m^2

OpenStudy (anonymous):

oh ok thanks for the tips i fanned and i gave u a medal for all three questions thank u very much i will ask u whenever i have a question from now on.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!