Use the Quadratic Formula to solve the equation. 8x2 = 20x + 45
First, can you put this equation into "standard form", where all the terms are on the left side and the right side is 0 ?
yes by bringing the left side to the right side
yes, but write down what you get. this explains how to do the problem http://www.khanacademy.org/math/trigonometry/polynomial_and_rational/quad_formula_tutorial/v/using-the-quadratic-formula
|dw:1380721985378:dw| Kan academy is the best as @phi told
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