Question

can someone give me a hand? (Monomials)
4abc^7 + 10a^3b^2c^5

if a=2 b=3 c=1, what do i get?

Answer 1

if 1 response will medal
2 responses, will medal 1, fan the other

Answer 2

plz help

Answer 3

so than given that a=2 ,b = 3 and c=1 just substitute these values in place of every term and calculi what will get

Answer 4

in this way

4*2*3*1^7 + ...

Answer 5

so 4abc^7..
i multiply them?

Answer 6

oh

Answer 7

yes there between these terms is multiplication

Answer 8

ohh ok just checking

Answer 9

wait so i get 24^7+20^33^31^5

Answer 10

24^7 how ? there is just 1^7

Answer 11

but u said i hve to multiply them

Answer 12

4*2*3*1^7 = 4*2*3*1 = 4*6= 24

and the other one

Answer 13

c^7 or 1^7 means 1*1*1*1*1*1*1

Answer 14

so 4 times 2 times 3 times 1

Answer 15

yes

Answer 16

then to the ^7

Answer 17

just 1 is on exponent of 7

Answer 18

do you remember order of operations
you do the exponents first
1^7 becomes just 1
(because 1 *1 *1 *..1 is just 1)

Answer 19

or not ?

Answer 20

but i plugged in 2,3, and 1 correct? but i still had a 4 at the front..

Answer 21

yes

Answer 22

4abc^7

Answer 23

and 4*2*3*1^7 = 4*2*3*1 = ?

Answer 24

so are you saying i multiply 24 7 times??

Answer 25

no

there is just 1 on exponent of 7

Answer 26

and you know that 1 on exponent of 7 = 1

Answer 27

oh so it becomes just 24?

Answer 28

yes sure

and the other one than you substitute theses values ?

Answer 29

20^33^31^5

but it should be just

20^33^3

Answer 30

right?

Answer 31

10*2^3 *3^2 *1^5 = ?

Answer 32

2^3 = ?

Answer 33

20^3 * 3^2 * 1^5

i dont multiply tho i leave it like that

Answer 34

no

Answer 35

except for 1^5 disappears

Answer 36

there is just 2^3

Answer 37

how?

Answer 38

what how ? there is just 2 on exponent of 3 and 3 on exponent of 2 and 1 on exponent of 5

Answer 39

10 there have not exponent

Answer 40

yah

Answer 41

turbo, you are not following the "order of operations"
you start with
10a^3b^2c^5
now remember that is short for
10 * a^3 * b^2 * c^5
(we usually don't show the multiply signs, but they are there)

then you replace the letters with the numbers they gave you
a=2 b=3 c=1
10 * 2^3 * 3^2 * 1^7

now order of operations
(people use PEDMAS or BODMAS to remember)
but the idea is first do the exponents
for example what is 2^3 ?

Answer 42

nmi think i got it

Answer 43

i am working it out pen and paper

Answer 44

so jhonyy9 explained that i get 24 for the first part

Answer 45

yes

Answer 46

that means i get 20^3 and 3^3 for the second part

Answer 47

to get that from
10 * 2^3 * 3^2 * 1^7

you must have done 10*2 first and that is not allowed
we do exponents before multiply
in other words, you have to first do 2^3
and 3^2
and 1^7

Answer 48

ohhh i see what u are saying.. i am very sorry

Answer 49

ok let me solve

Answer 50

720???????

Answer 51

yes, that sounds right
now add the first term (the 24)
to get 720+24

Answer 52

222=8
33=9
1111111=1
*10= 720

Answer 53

ok

Answer 54

744

Answer 55

but we would write
2^3 as 2*2*2 not 222
because 2*2*2 is 8 and that is much different from two hundred twenty two (222)

yes, 744 is the answer

Answer 56

but im still a little confused for as of whythe first part is 24 tho

4abc^7
4*2*3*1 ^7

Answer 57

ok, in that mess, which part do you do first ?

Answer 58

oh yah the OHHHHHXD

Answer 59

THE EXPONENT

Answer 60

ok that makes sense

Answer 61

i get,,,,

24+720

Answer 62

then i get....

=744

Answer 63

yes

Answer 64

ok Thank you so much!!!