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21 January, 05:04

If (x+1) (x+4) - (x-2) = 0 what is the value of x?

A: - 1

B: - 1/4

C: 0

D:1/4

E: 1

+4
Answers (1)
  1. 21 January, 05:16
    0
    (x+1) (x-4) - (x-2) = 0

    x²-4x+x-4-x+2 = 0

    x²-4x-2 = 0

    / / = (-4) ² - 4*1 * (-2)

    / / = 16 + 8

    / / = 24

    x = ( - (-4) + / - / / 24) / 2

    x = (4+/-//4*6) / 2

    x = (4+/-2//6) / 2

    x = 2+/-//6

    x' = 2+//6

    x" = 2-//6
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