Question

Factorisation
$63x {}^{2} - 112y {}^{2}$
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Answer 1

Step-by-step explanation:

(3√7X)^2-(4√7Y)^2

(3√7X+4√7Y) (3√7X-4√7Y)

hope it will help u

Fallow me guys

Answer 2

63xsq- 112ysq

= 7( 9 x sq - 16y sq )

now u can do