Question

Help please! Find the solutions of the system y=x^2+3x-4 y=2x+2

Answer 1

see u got 2 equations for y ....so u just need to equate them...

Answer 2

I agree. That would be "elimination by substitution." Also available to you would be "elimination by addition / subtraction."

Please act on rishavraj' advice.

Answer 3

How would I do that?

Answer 4

so
\[x^2 + 3x - 4 = 2x + 2 \]

Answer 5

now u can solve for x easily @NellyNell2142

Answer 6

Set the first equation = to the second. This will eliminate y. Again, rishavraj is correct. can you, Nelly, now find the value of x that satisfies this equation?

Answer 7

yes thanks! @mathmale @rishavraj