If ab=5 and a*a+b*b=25,then (a+b)(a+b)=?​

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If ab=5 and a*a+b*b=25,then (a+b)(a+b)=?​

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Thành Công 4 years 2021-08-31T04:44:16+00:00 1 Answers 8 views 0

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  1. thienthanh
    0
    2021-08-31T04:45:53+00:00
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    Answer:

    (a + b) (a + b) = 35

    Step-by-step explanation:

    {(a + b)}^{2} = {a}^{2} + {b}^{2} + 2ab \\ \\ (a + b) (a + b) = a \ast a + b \ast b + 2ab \\ \\ = 25 + 2 \times 5 \\ \\ 25 + 10 \\ \\ (a + b) (a + b) = 35

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