Xy=6 and x+y=5then the valueof x2+y2

1.	Xy=6 and x+y=5then the valueof x2+y2
Answer» Step-by-step EXPLANATION: by SUBSTITUTING METHOD x+y=5 x=5-y put x=5-y in xy=6 (5-y)(y)=6 5y-y^2=6 -y^2+5y-6=0 y^2-5y+6=0 a=1. b=-5. c=6 d=b2-4ac =25-6 =19 x=-b+✓d/2a. or. -b-✓d/2a =-(-5)+✓19/2. or. -(-5)-✓d/2 =*+5+✓19/2. or =5-✓19/2*

Answer»

Step-by-step EXPLANATION:

by SUBSTITUTING METHOD

x+y=5

x=5-y

put x=5-y in

xy=6

(5-y)(y)=6

5y-y^2=6

-y^2+5y-6=0

y^2-5y+6=0

a=1. b=-5. c=6

d=b2-4ac

=25-6

=19

x=-b+✓d/2a. or. -b-✓d/2a

=-(-5)+✓19/2. or. -(-5)-✓d/2

=+5+✓19/2. or =5-✓19/2

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Xy=6 and x+y=5then the valueof x2+y2​

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Xy=6 and x+y=5then the valueof x2+y2