Question

4./If x + y = 7 and xy = 12, the value of (x2 + y2) is
(a) 25
(b) 29
(c) 37
(d)40​

Answer 1

Answer:

37

Step-by-step explanation:

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Answer 2

Answer :-

Given

x + y = 7

xy = 12

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To find,

(x² + y²)

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We know that (x +y)² = x² + y² + 2xy

So,

=> 7² = x² + y² + 2 × 12

=> 49 - 24 = x² + y²

=> 25 = x² + y²

So, x² + y² = 25

The correct option is (a). 25

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