Question

5a²w³(a²w^6−3a^4w²+9aw^6)

Answer 1

Do you know the laws of distribution?

Answer 2

5a^2w^3(a^2w^6)-5a^2w^3(3a^4w^2)+5a^2w^3(9aw^6)

Sorry the equation thing isn't working for me.

Answer 3

i forgot how to spell it i think its fisl (first inter second last right)

Answer 4

and yes if thats how u write it out then thats the right equation u wrote

Answer 5

I think you're thinking of FOIL (first, outer inner, last)...but that's for something that looks like this: (x-2)(x-3).

In this case, you want to go through for each individual term and start with the form that I provided for you in the previous post. Multiply the coefficients and add exponents. Let me know what you get and I'll tell you if it's right.

Answer 6

this is the first thing i got 5aw^5*aw^7

Answer 7

Ok so we are starting at this step.
5a^2w^3(a^2w^6)-5a^2w^3(3a^4w^2)+5a^2w^3(9aw^6)

Let's break this up into 3 individual parts.
a) 5a^2w^3(a^2w^6)

b) -5a^2w^3(3a^4w^2)

c) +5a^2w^3(9aw^6)

Answer 8

I'll do a) and then hopefully you will see what to do with b) and c). a) 5a^2w^3(a^2w^6) 5a^4w^9 This is because 5 is the coefficient, then we have a^2 * a^2 (when we multiply exponents, we are actually adding them) so it is a^4, and finally we have w^3 * w^6, which is w^9.

Answer 9

oooooohhhhhhh woooooowww im dumb

Answer 10

No, you are not. Sometimes math gets the best of us.

Does it make sense now? Do you want me to check your work on the rest of this problem to make sure you have the hang of it?

Answer 11

yes

Answer 12

Ok just post back when you think you have it. Don't forget to put all 3 parts together

Answer 13

whats -5*3

Answer 14

i forgot

Answer 15

nvm

Answer 16

for this one what do i do+5a^2w^3(9aw^6) because it has a plus in front of the 5

Answer 17

for b i got -15a^8w^6

Answer 18

@Skip2mylou426 for c i got 14a³w^9

Answer 19

For b) you should've gotten -15a^6w^5. You did the coefficient correctly, but were supposed to add the numbers in the exponents rather than multiply them.

Answer 20

and this is what i got 5a^4w^9*-15a^6w^5+14a³w^9

Answer 21

i had changed it

Answer 22

For c) you would've had the correct answer but you need to multiply 5*9 for the coefficient rather than add them. So it should be 45a^3w^9. But you did the exponents correctly!

Answer 23

yes i got 45 but i thought it would be wrong so i add them

Answer 24

5a^4w^9*-15a^8w^6+45a³w^9

Answer 25

do i add them together

Answer 26

5a^4w^9*-15a^6w^5+45a³w^9. But do you understand that you need to multiply coefficients and add exponents?

Answer 27

And to answer your question, no you cannot add them because the terms do not have the same exponents.

Answer 28

but that will give me -75

Answer 29

Not for the whole thing, for the individual parts a), b) and c) are where you multiply to get coefficients and add to get exponents.

Answer 30

-30a^12w^24 is my final answer

Answer 31

You need to leave your final answer as 5a^4w^9-15a^6w^5+45a³w^9. You cannot add them together.

Answer 32

ok then i will

Answer 33

thx for the help

Answer 34

Do you understand why?

Answer 35

You're welcome

Answer 36

because it dosent have the same expoents

Answer 37

Good :)

Answer 38

:)