SOLUTION: Use the method of substitution to solve the system (x^2+y^2=17) (x+y=1)
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Question 601259: Use the method of substitution to solve the system (x^2+y^2=17) (x+y=1)
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
(x+y)=1
y= 1-x
/2
Find the roots of the equation by quadratic formula
a= 1 , b= -1 , c= -8
b^2-4ac= 1 + 32
b^2-4ac= 33
x1=( 1 + 5.74 )/ 2
x1= 3.37
x2=( 1 -5.74 ) / 2
x2= -2.37
When x= 3.37 y = -2.37
When x= -2.37 y=3.37
m.ananth@hotmail.ca
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