(x10 - x7)(x3 - 7)

Question

Use the FOIL method to find the product of the binomials. Enter your answer in descending order in the box below. Enter exponents using the caret

( ^ ). For example, you would enter as 4x^2.

(x¹⁰ - x⁷)(x³ - 7)

Answer 1

 

First: (x^10)(x^3)  = x^13

 

Outside = (x^10) (-7) = -7x^10

 

Inside = (-x^7)(x^3) = -x^10

 

Last = (-x^7)(-7) = 7x^7

 

x^13 - 7x^10 -x^10 + 7x^7

 

 

 

X^13 - 8x^10 + 7x^7