SOLUTION: Solve the system algebraically. { x^2 + 4y + 2x = 11 y = x + 5

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Question 917733: Solve the system algebraically.
{ x^2 + 4y + 2x = 11
y = x + 5
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2%2B4%28x%2B5%29%2B2x=11 when substituted for y.
x%5E2%2B4x%2B20%2B2x=11
x%5E2%2B6x%2B20=11
x%5E2%2B6x%2B9=0, a perfect square trinomial.