A^2-5a = 6
a^2-5a-6 = 0
Discriminant = (-5)^2-4(1)(-6) = 49
Discriminant is positive so there are two solutions
The answer (i think) is 3 <span>≥</span> x. hope i helped
Divide 108 and 72 by twelve and you get 9 and 6 which all you have to do it multiply together