Question

find the value of a+b when a2 +b2 =10 and ab=3​

Answer 1

Step-by-step explanation:

From the formula

(a + b)² = a² + 2ab + b²

substitute given values

(a + b)² = a² + b² + 2ab

(a +b)² = 10 + 2 ( 3)

(a +b)² = 10 + 6

(a+b)² = 16

a+b = √16

a+b = ±4

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Answer 2

$\huge\underline\mathfrak\blue{Solution}$

Given.

a² + b² = 10

ab = 3

(a + b) ² = a² + b² + 2ab

(a + b) ² = 10 + 6

a + b = ± 4

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