SOLUTION: Simultaneous equations- one linear one quadratic Xsquared+ysquared=20 X-2y=0

SOLUTION: Simultaneous equations- one linear one quadratic Xsquared+ysquared=20 X-2y=0

Algebra.Com

Question 998042: Simultaneous equations- one linear one quadratic
Xsquared+ysquared=20
X-2y=0

Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
From and
x - 2y = 0
Solve the second one and substitute into the first one and get
x = 2y so that

y = 2, -2
For y = 2, x = 4
For y = -2, x = -4
RELATED QUESTIONS
Simultaneous equations - one linear, one quadratic x^2 + y^2 = 25 x - y + 1 =... (answered by Alan3354)

Simultaneous equations - one linear, one quadratic Solve the following equations: xy (answered by epistrophy990,MathTherapy)

Listed under "Simultaneous equation of which one is linear and one is quadratic"... (answered by lwsshak3)

solve simultaneous equations algebraically 2y+x=9... (answered by ikleyn)

COULD SOME ONE HELP? SOLVE EACH SYSTEM OF SIMULTANEOUS EQUATIONS BY USING THE LINEAR... (answered by stanbon)

solve for x the quadratic equation... (answered by Fombitz)

Solve this equation, one is simultaneous, one is linear x^2 + y^2 = 9 x + y =... (answered by MathLover1)

Simultaneous Equations 3x+2y=16... (answered by Alan3354)

xsquared+8x-20=0 (answered by Solver92311)