Let's multiply the first equation by -2 so that we can eliminate y.
-2x-4y=-20
3x+4y=8
X=-12
Since X is -12, let's plug it in to the equation to check.
-12+2y=10
2y=22; let's divide
y=11
So, D (-12,11)
Answer:
three
Step-by-step explanation:
1) solving for roots
2) Quadratic formula
3) By completing square
Assuming the order of selection doesn't matter:
9-10
nice lol
