Question

(7a square - 63b square) = ?​

Answer 1

Answer:

7a²-63b²

taking 7 common

a²-9b²

(a)²-(3b)²

(a+3b)(a-3b) ans.

Answer 2

Answer:

$7a^2-63b^2=7(a+3b)( a-3b)$

Step-by-step explanation:

$7a^2-63b^2$

Taking 7 common from both term,

              $7(a^2-9b^2)$

                                   

We know that,

                   $a^2-b^2=(a+b)(a-b)$

                    $7[a^2-(3b)^2)]=7(a+3b)( a-3b)$