Question 71321
Find two numbers when added equal -3 and when multiplied equal -18

{{{a+b=-3}}}
{{{ab=-18}}}

Solving we find -6 and 3. (-6)(3)=-18 and -6+3=-3.

{{{x^2-6x+3x-18=0}}}

Group:

{{{(x^2-6x)+(3x-18)}}}

Factor out a common factor:

{{{x(x-6)+3(x-6)}}}

{{{(x-6)(x+3)}}}