Question

What is the answer to x2-100??

Answer 1

Step 1. Rewrite it in the form
`a^(2) - b^(2) ,` where
`a=x` and
`b=10`


`x^(2) - 10^(2)`

Step 2. Use Difference of Squares
`a^(2) - b^(2) =(a+b)(a-b)`


`(x+10)(x-10)`