Question

(iii) x²-4(2)+2x+6=0
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Answer 1

x²-8+2x+6=0

x²+2x-2=0

x²+2x-1x-2=0

x(x+2)-1(x+2)=0

(x+2)(x-1)=0

x=-2 or +1

Answer 2

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