Math, asked by kunverprateeksingh, 6 months ago

If x - y = 2 and xy = 63, find the value of x + y​

Answers

Answered by tannumishra1464
2

Step-by-step explanation:

very easy

we know

=>(x – y)²= (x +y)²– 4xy

=>(2)²=(x + y)² – 4×63

=>4 = (x+y)²– 252

=>(x+y)²=252+4

=>(x+y)²=256

=>x+y=√256

=>x+y=√16×16

=>x+y=16

formula used

=>(a – b)²= (a + b)² – 4ab

Answered by RealSweetie
3

Answer:

(x+y)2=(x-y)2+4xy=(2)2+252=256

(x+y)2=256

x+y=√256=16

Step-by-step explanation:

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