x2+7x-18 = (x+9)(x-2) when factored
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Yes, 18y3 + 2y2 + 1 is a polynomial; it is a cubic expression. If it were expanded to form an equation, then it would be a cubic equation (or higher), capable of solution.
The answer to this question is 18. This is a math problem.
You add -18... 18 + y = 32 18 + y + (-18) = 32 + (-18) y = 14
8x+30=4x+18 -4x -4x 4x+30=18 -30 -30 4x=-12 4x/4=-12/4 x=-3
(x2 + 7x - 18) = (x + 9)(x - 2)