Question

Solve the following by factorisation :
2x^2 + ax - a^2

Answer 1

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______Here is answer______
=$2 {x}^{2} + ax - {a}^{2}$
=$2 {x}^{2} + 2ax - ax - {a}^{2}$
=$2x(x + a) - a(x + a)$
=$(2x - a)(x + a)$
so factors are (2x-a ) & ( x+a)

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