x² + 9x + 18 in this solve the question
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by solving equation x=-6,-3
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- x^2+9x+18=0
- x^2+7x+2x+18=0
- x(x+7) +2(x+7) =0
- (x+2) (x+7) =0
- x+2=0
- x= -2
- x+7=0
- x= -7
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