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Unformatted text preview: a) x 2 – 9x + 20 = b) x 2 + 12x + 35 = c) x 2 – x – 90 = d) x 2 + x – 42 = e) 4x 2 + 7x – 15 = f) 2x 2 – 13x + 15 = g) 4x 2 – 9x – 9 = h) 6x 2 + 14x + 4 = Quadratic Equations page 7.1  17 4. Solve each quadratic equation by first having one side become 0. Check your answers to verify that they are solutions. a) x 2 + 2x – 4 = 59 b) x 3 + 23x 2 = 50x c) (x + 6)(x – 7) =  40 d) x 2 – 4x = 3x – 10 e) x = 3x 2 – 10 f) x 2 – x = 18 – 4x...
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 Fall '10
 JanetFrewing
 Quadratic equation, Elementary algebra, zero product principle

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