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2 November, 02:29

Which equation has the same solution as 2x^2+16x-10=0

A: (x+4) ^2=-3

B: (x+4) ^2=-11

C: (x+4) ^2=13

D: (x+4) ^2=21

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Answers (1)
  1. 2 November, 03:31
    0
    D

    Divide the whole thing by 2

    2 (X^2+8x-5)

    X^2+8x. = 5

    Half of 8 is 4 sq it so you add 16

    X^2+8x+16 = 5+16

    (X+4) ^2=21
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