Question

Product of (2+x) and (2-x) is​

Answer 1

Use FOIL,

`(2+x)(2-x)=4-2x+2x-x^2=4-x^2`.

Answer 2

4 - x²

Explanation:

(2 + x)(2 - x)

Each term in the second factor is multiplied by each term in the first factor

= 2(2 - x) + x(2 - x) ← distribute both parenthesis

= 4 - 2x + 2x - x² ← collect like terms

= 4 - x²