SOLUTION: Does anyone know how to do this i need help.
Use the substitution method to solve the system
x^2+y^=20
x+y=1
Algebra.Com
Question 624570: Does anyone know how to do this i need help.
Use the substitution method to solve the system
x^2+y^=20
x+y=1
Answer by oscargut(2103) (Show Source): You can put this solution on YOUR website!
x^2+y^2=20
x+y=1
Solution:
y = 1-x
x^2+(1-x)^2=20
2x^2-2x+1 = 20
2x^2-2x-19 = 0
if then
if then
Solutions:
,
,
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