Question

(a-10)(a+10)= i need ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Answer:

A ro the second power-100

Answer 2

Answer:

a²-100

Step-by-step explanation:

FOIL

Front

Outer

Inner

Last

Front = a x a

a²

outer = a x 10

10a

inner = -10 x a

-10a

last = -10 x 10

-100

a²+10a-10a-100

combine like terms

a²-100