Y=2(-1)^2-6(-1)+3
y=2+6+3
y=8+3
y=11
The answer to your question is 448in squared
What you can do is subtract 1x from each side
Then you subtract 3 from each side
Then it tells you x=2
Always put what you think x is back into the problem and see if it works out
Example on how you do it:
(x+5)=(2x+3)
5=(x+3)
2=x
