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17 February, 10:01

If ab=7 and a+b=6 what is a"squared" + b "squared"

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  1. 17 February, 13:11
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    a² + b² = 22

    Step-by-step explanation:

    Note that

    (a + b) ² = a² + 2ab + b², thus

    a² + b² = (a + b) ² - 2ab = 6² - (2 * 7) = 36 - 14 = 22
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