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7 December, 09:52

Solve for x

2^2+4^2+2x=100

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Answers (2)
  1. 7 December, 10:59
    0
    2 to the second power is 4

    4 to the second power is 16

    4+16 = 20

    100 - 20 = 80

    80 divided by 2 is 40

    Ans: 40

    Tip: If your not sure whether the answer is right or not, plug it back into the equation
  2. 7 December, 12:36
    0
    2 x 2 = 4 + 4 x 4 = 16

    4 + 16

    = 20 + 2x = 100

    (x = 40)

    2 x 40 = 80 + 20 = 100.
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