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If ab=5 and a²+b²=25,then (a+b)² equals to.​
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5 votes
If ab=5 and a²+b²=25,then (a+b)² equals to.​

User Hamid Fadishei
by
8.0k points

2 Answers

3 votes

Answer:

30

Explanation:

Given

ab=5

a²+b²=25

So

(a+b)²=a²+ab+b²

=a²+b²+ab

=25+5

=30

User Andriy K
by
7.2k points
6 votes

Answer:

(a + b)² = 35

Explanation:

Note the expansion of (a + b)²

(a + b)² = a² + b² + 2ab ← substitute given values

= 25 + 2(5)

= 25 + 10

= 35

User Dmkc
by
7.0k points
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