Question

Factorise. (1)x2+9x+18
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Answer 1

x^2+3x+6x+18=0

X(X+3)+6(X+3)=0

(X+3)(X+6)=0

X=-3,-6

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Answer 2

Factorise x² + 9x + 18

= x² + 6x + 3x + 18

= x(x + 6) +  3(x + 6)

= (x + 3)(x + 6)

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