Question

17. If x + y = 2 and xy = 1 , Find (x + y)2​

Answer 1

Answer:

if X+Y =2

Then,

(X+Y)2

2×2=4

Answer 2

$\boxed{\bf{\red{Question}}}$

If x + y = 2 and xy = 1 Find (x+y)²

$\boxed{\bf{\red{Answer}}}$

(X + y )²

= (x + y)² - 2xy

= (2)² - 2×1

= 4 - 2

= 2

$\boxed{\bf{\red{Formula\:used:(a+b)²=(a+b)²+2ab}}}$

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