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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