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7 April, 02:58

Solve for x. Write both solutions, separated by a

comma.

5x^2 + 2x - - 7 = 0

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Answers (1)
  1. 7 April, 03:17
    0
    Answer: 1 or - 7/5

    Step-by-step explanation:

    5x2+2x-7=0

    Factorise

    Factors of - 35 that will give + 2 is + 7&-5

    5x2+7x-5x-7=0

    X (5x+7) - 1 (5x+7) = 0

    (X-1) (5x+7) = 0

    X-1=0

    X=1

    5x+7=0

    5x = - 7

    X = - 7/5

    X = 1 or-7/5
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