Question

Solve the system of equations algebraically. Show all your steps if you can please that way I can learn.
Y=x^2+2x
Y=3x+20
I appreciate any help 😊
I tried everything I could think of but I just can't get it right! I will medal anyone who gives effort to help me. Thank You!!!

Answer 1

i can help

Answer 2

Really? That would be great since I can't seem to be doing it right

Answer 3

so what you would want to do it substitute the value of y from 1 equation into the value of y in the second equation

Answer 4

for example:
3x+20=x^2+2x

Answer 5

Yes, I've got that 😊

Answer 6

20=x^2+2x-3x

Answer 7

20=x^2-x

Answer 8

0=x^2-x-20

Answer 9

then you want to factor x^2-x-20

Answer 10

so can you factor that for me?

Answer 11

you there?

Answer 12

@GNoiij Every time I try to factor this part I get x=-4 or x=5?

Answer 13

Oops my bad. @GNiiij