3 years ago

If ab = 5 and a² + b² = 25, then (a + b)2 =?

Mathematics

1 answer:

bearhunter [10]3 years ago

3 0

Answer:

35.

Step-by-step explanation:

a^2 + b^2 = (a + b)^2 - 2ab

Substituting the given values:

25 = (a + b)^2 - 2*5

(a + b)^2 = 25 + 10

(a + b)^2 = 35

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If ab = 5 and a² + b² = 25, then (a + b)2 =?​

If ab = 5 and a² + b² = 25, then (a + b)2 =?