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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)=?​

User Anup Gupta
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1 Answer

8 votes

Answer:

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

Explanation:


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

User Forethought
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