Question

If a+b = 7 and ab = 10, find the value of (a+b)². Please show solution.

Answer 1

Answer:

$49$

Explanation:

If a + b = 7 and ab = 10

Then, a = 2 & b = 5

So, (a+b)²

= (2 + 5)²

= 7²

= 49

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