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9x2+11x-14 = (9x-7)(x+2) when factored with the help of the quadratic equation formula.
9x2-9x-10 = (3x+2)(3x-5) when factored
9x2...I guess that means 9x squared ? The problem: 9x(squared)+12x+4 Here's the answer: (3x+2)(3x+2) or even more simplified: (3x+2) squared
Divide all terms by 2 it is then x2-15+56 = (x-7)(x-8) when factored
(3x)^(2-4) = (3x)^-2 = (9x2)^-1 = 1/(9x2)