Solve: 125 x^2-45 y^2 - Vidyadip

Question

Solve:
$125 x^2-45 y^2 $

✓

Answer

$125 x^2-45 y^2 $
$ =5\left(25 x^2-9 y^2\right) $
$ =5\left[(5 x)^2-(3 y)^2\right] $
$ =5(5 x-3 y)(5 x+3 y) $

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