factorize X square + 9x - 18
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x^2+9x-18=0
x^2+6x+3x-18=0
X(X+6)-3(X+6)=0
(x-3)(X+6)=0
X=3 & X= -6
this is your answer..
x^2+6x+3x-18=0
X(X+6)-3(X+6)=0
(x-3)(X+6)=0
X=3 & X= -6
this is your answer..
Answered by
0
Answer:
= x² + 9x - 18
= x² + 6x + 3x - 18
= x² + 6x + 3x - 6×3
= x[x+6] - 3[x+6]
= [x+6][x+3]
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