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13 December, 00:12

What substitution should be used to rewrite 6 (x + 5) 2 + 5 (x + 5) - 4 = 0 as a quadratic equation?

- (x+5)

- (x - 5)

Ou - (x + 5) 2

u = (x - 5) 2

+1
Answers (2)
  1. 13 December, 00:13
    0
    x+5 is replaced

    Step-by-step explanation:

    6 (x + 5) ^2 + 5 (x + 5) - 4 = 0

    Replace x+5 with m

    6 (m) ^2 + 5 (m) - 4 = 0

    Now this is a quadratic equation
  2. 13 December, 00:27
    0
    x+5 is replaced

    Step-by-step explanation: 6 (x + 5) ^2 + 5 (x + 5) - 4 = 0

    Replace x+5 with m

    6 (m) ^2 + 5 (m) - 4 = 0
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