Question

x²+3x-28=0 by factorisation

Answer 1

x²+(7-4)x-28=0,

x²+7x-4x-28=0,

x(x+7)-4(x+7)=0,

(x+7)(x-4)=0

Answer 2

x^2+3x-28=0
x^2+7x-4x-28=0
x(x+7)-4(x+7)=0
(x-4)(x+7)=0


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