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31 March, 14:42

Check all the apply. X^2-6x+40=6x+5

A. - 6

B. - 5

C. 6

D. 5

E. 7

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Answers (1)
  1. 31 March, 15:40
    0
    D. 5

    E. 7

    Step-by-step explanation:

    X^2-6x+40=6x+5

    Bring all the terms to one side

    Subtract 6x from each side

    X^2-6x-6x+40=6x-6x+5

    x^2 - 12x+40 = 5

    Subtract 5 from each side

    x^2 - 12x+40-5 = 5-5

    x^2 - 12x+35 = 0

    Factor

    (x-5) (x-7) = 0

    Using the zero product property

    x-5=0 x-7=0

    x=5 x=7
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