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23 August, 23:05

In the quadratic equation x2 - 8x + a = 0; what is the value, a, in order to form a perfect square?

A) 8

B) 16

C) 32

D) 64

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Answers (1)
  1. 24 August, 00:18
    0
    The answer is D.

    x² - 8x + 64 = 0

    (x - 8) ² = 0

    x - 8 = 0

    + 8 + 8

    x = 8
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