can someone help with this question ?? fully factorise x^2+ 9x +18
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can someone help with this question ??
fully factorise x^2+ 9x +18
fully factorise x^2+ 9x +18
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1. User Answers irspow
This is of the form ax^2+bx+c, you must find two values, j and k, that satisfy two conditions:
jk=ac=18 and j+k=b=9, so j and k must be 3 and 6, and the factors then must be:
(x+3)(x+6)