## anonymous one year ago 3) Factor Completely: x2 - 81 A) (x - 9)(x + 9) B) (x + 9)(x + 9) C) (x - 9)(x - 9) D) (9 - x)(9 + x)

1. pooja195

Diffrence of 2 squares $\huge~\rm~\sqrt{x^2}-\sqrt{81}$ Write it in this form: $\huge~\rm~ (a+b) (a-b)$

2. anonymous

?

3. pooja195

Whats the square root of 81?

4. anonymous

9

5. pooja195

Ok so then you would write the phrase (x+9) (x-9)

6. anonymous

ok thx