Question

x + y = 3, x^2 + y^2 = 5 then xy is *

1 point

a) 1

B) 3

C) 2

D) 5

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Answer 1

(x²+y²)=(x+y)²-2xy=5; 9-5=2xy; xy=4/2=2; Option c. Please mark the answer as brainliest.

Answer 2

Answer:

c)2 is the answer.

Step-by-step explanation:

first square the equation x+y=3

then we will get x^+y^+2xy=9

put value of x^+y^=2 in above equation then

we will get the value of xy = 2