Question

If x + y = 10 and xy = 5 then find the value of x2 + y2​

Answer 1

Step-by-step explanation:

x+y=10-----(1)

xy=5------(2)

dividing (1) by(2)... we get!

x/y+ y/x=10/5

=>2

Hope it helps :)-

Answer 2

Step-by-step explanation:

XY=5 I,e X=5/y -1

from equation 1 in 2

x + y=10

5/y + y =10

5+y²/y=10

5 +y²=10y

y²-10y+5=0

Do this by formula method