Question

Simplify: -7x^3*8x^2

Answer 1

you add exponents when you multiply

Answer 2

\(\bf -7x^3\cdot 8x^2\implies -7\cdot 8x^3\cdot x^2\implies -7\cdot 8x^{3+2}\)

Answer 3

i dont get it though

Answer 4

http://www.math-play.com/image-exponents-rules.jpg <--- notice the 3rd rule

hmmm ok... so... what part you are not getting?

Answer 5

multiply the coefficients as normal
-7 * 8 = -56

Answer 6

combine the variables x^3 + x^2 = x^5

Answer 7

it just doesent make sence to me

Answer 8

you'd multiplyi the coefficients
and the variables IF they're the same "base"
their exponents get added, as the rule shows there

Answer 9

combine (-56)(x^5)

Answer 10

theres no -56 there
or 5

Answer 11

-7 x 8 = ?

Answer 12

and how do i combine them

Answer 13

do you know how to multiply?

Answer 14

michael theres exponents there

Answer 15

yes

Answer 16

multiply the coefficients and add the variables

Answer 17

u cant combine if theres x's and stuff

Answer 18

you add the x's with the coefficients

Answer 19

for example 2x^2 * 3x^3 = 6x^5

Answer 20

Still not getting it

Answer 21

-7x^3 * 8x^2 = (-7*8)*(x^3 + x^2)

Answer 22

What's this?

Answer 23

(-56)(x^5)

Answer 24

Whats that?