Q. 3 D3.7( 3 Votes )

Simplify the following expressions:

(25m2 – 4n2)÷ (5m + 2n)

Answer :

Factorize the numerator,

25m2 – 4n2 = (5m)2 – (2n)2

= (5m + 2n)(5m – 2n) [ a2 – b2 = (a + b)(a – b)]


= 5m – 2n

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