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10 December, 22:46

What are the solutions to the equation?

x2 + 6x = 40

a. x = - 10 and x = 4

b. x = - 8 and x = 5

c. x = - 5 and x = 8

d. x = - 4 and x = 10

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Answers (1)
  1. 10 December, 22:53
    0
    1. Move all terms to one side

    x^2+6x-40=0

    2. Factor x^2+6x-40

    (x-4) (x+10)

    3. Solve for x

    x=4 or x=-10

    Your answer is therefore a : D
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