Q. 4 E5.0( 1 Vote )

# Factorize :169m2 – 625n2

Given 169m2 – 625n2 = (13m)2 – (25n)2

Comparing with a2 – b2 = (a + b) (a – b)

a = 13m and b = 25n

So, 169m2 – 625n2 = (13m + 25n)(13m – 25m)

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