Question

a+b =20 or a×b =40 then find a square +b square =??

Answer 1

ANSWER
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a + b = 20
ab = 40


Using identity,
(a + b)^2 = a^2 + b^2 + 2ab


(a + b)^2 = 20^2

=> a^2 + b^2 + 2ab = 400

=> a^2 + b^2 + 2 × 40 = 400

=> a^2 + b^2 = 400 - 80

=> a^2 + b^2 = 320

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ANSWER = a square + b square = 320
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HOPE IT HELPS :):):):):):)

Answer 2

The answer is 320. The process shown below.