1.

Solve by factorisation method (x+1)2=2(x-3)

Answer»

(x + 1)^2 = 2(x - 3) \\ \\ = x^2 + 2x + 1 = 2x - 6 \\ \\ x^2 + 1 = - 6 \\ \\ x^2 = - 6 - 1 = - 7 \\ \\ x = \sqrt{-7} = Invalid


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