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29 April, 21:00

If a+b=12 and a-b = 8, what is the value of a^2+b^2?

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Answers (2)
  1. 29 April, 21:08
    0
    A = 10, b = 2

    a^2+b^2 = 100+4 = 104

    Work:

    Split 12 into two even halves: 6 and 6

    Increase one side by 4 and decrease the other side by 4, to make them 8 apart.

    Now we have 10 and 2.
  2. 29 April, 23:05
    0
    Step-by-step explanation:

    A2 + b2 = (a + b) (a-b)

    Putting values

    a2 +. b2 = (12) (8)

    a2 + b2 = 96
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