Question

If x+y=5bad xy=6,frind theke value of x2+y

Answer 1

Step-by-step explanation:

very easy!!

x+y=5

therefore x=5-y..........1

put in xy=6

(5-y)×y

5y-y2=6

y2-5y+6=0

y2-3y-2y+6=0

y(y-3)-2(y-3)=0

y=2 or y=3

put in 1

x=3 or x=2

put inx2+y

= 11 or 7