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(7x + 8)(7x - 9)
(7x + 6)(49x^2 - 42x + 36)
(-7x + 3)(-7x +3)
7x2+49x+84 = 0 Divide all terms by 7: x2+7x+12 = 0 Factorize: (x+3)(x+4) = 0 Therefore the x intercepts are -3 and -4
4x2+49x+90 = (4x+9)(x+10) when factored