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16 February, 12:38

X^2 - 14x + 49 = 9 complete the square

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  1. 16 February, 14:49
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    4 or 10

    Step-by-step explanation:

    x^2 - 14x + 40 = 0

    x^2 - 10x - 4x+40=0

    x (x - 10) - 4 (x - 10)

    x - 4 (x - 10)

    either x = 4

    0r x = 10
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