Substituting y = - x - 3 into the first equation, we have:
- x - 3 = 2 x ^ 2 + x -1
Simplifying, we have:
2 x ^ 2 + 2 x + 2 = 0
x=-\frac{1}{2}+i\frac{\sqrt{3}}{2},\:x=-\frac{1}{2}-i\frac{\sqrt{3}}{2}
Substituting y = 7/2 into the first equation, we have:
7/2 = - 2 x ^ 2 - 2 x + 3
Simplifying, we have:
2 x ^ 2 + 2 x + 2 = 0
x=-\frac{1}{2}
Since you already know one value, you can plug it in to figure out the other variable.
Substituting y = - x - 3 into the first equation, we have:
- x - 3 = 2 x ^ 2 + x -1
Simplifying, we have:
2 x ^ 2 + 2 x + 2 = 0
x=-\frac{1}{2}+i\frac{\sqrt{3}}{2},\:x=-\frac{1}{2}-i\frac{\sqrt{3}}{2}
Substituting y = 7/2 into the first equation, we have:
7/2 = - 2 x ^ 2 - 2 x + 3
Simplifying, we have:
2 x ^ 2 + 2 x + 2 = 0
x=-\frac{1}{2}
Since you already know one value, you can plug it in to figure out the other variable.