Question

FACTORISE a2-(2a-3b)2

Answer 1

a^2 (a square) - (2a - 3b )^2

using the identity a^2 - b^2 = (a+b)(a-b)

(a+2a-3b)(a-(2a-3b))

=(3a-3b)(a-2a+3b)

=(3a-3b)(3b-a)

=3(a-b)(3b-a)

hope it helps

if it does

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