Q. 2 G5.0( 1 Vote )

Using a suitable

Answer :

(a2 – b2) = (a – b) × (a + b)


(2l – 3m) (2l + 3m) = (2l)2 – (3m)2


(2l – 3m) (2l + 3m) = 4l2 – 9m2


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