Mathematics

Question

can someone help with this question ??
fully factorise x^2+ 9x +18

1 Answer

  • This is of the form ax^2+bx+c, you must find two values, j and k,┬áthat 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)


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