Question

X(X+4)= 12 by factorisation​

Answer 1

Answer:

x²+4x-12=0

x²+(6-2)x-12=0

x²+6x-2x-12=0

x(x+6)-2(x+6)=0

(x+6)(x-2)=0

x=-6, x=2

Answer 2

Answer:

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