If ab=5 and aa+bb=25,then (a+b)(a+b)=?

Mathematics

1 answer:

rosijanka [135]2 years ago

7 0

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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