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25 October, 16:44

Use any method to solve the equation. If necessary, round to the nearest hundredth.

x^2 + x - 30 = 0

A. - 5, 6

B. 10, - 12

C. 5, - 6

D. 5. 5, - 5.5

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Answers (1)
  1. 25 October, 19:40
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    Using the factor method we have x^2 - 6x + 5x - 30=0

    x (x-6) + 5 (x-6) = 0

    x+5 = 0 x = - 5

    x-6 = 0 x = 6

    The answer is - 5,6
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