Factorise: 2-50 x^2 - Vidyadip

Question

Factorise:
$2-50 x^2$

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Answer

$2-50 x^2$
$=2\left(1-25 x^2\right)$
$=2\left[(1)^2-(5 x)^2\right]$
$=2(1+5 x)(1-5 x)\left[\therefore a^2-b^2=(a-b)(a+b)\right]$

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