Question

18 x square A square - 32

Answer 1

Answer :

Now, $18{x}^{2} {A}^{2} - 32$

= 2 ($9 {x}^{2} {A}^{2} - 16$)

= 2 { $(3Ax)^{2} - {4}^{2}$ }

= 2 ( 3Ax + 4 ) ( 3Ax - 4 ),

which is the required factorization.

Identity Rule :

$a^{2} - b^{2}$

= ( a + b ) ( a - b )

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