2007-01-24 12:22:53 · 5 answers · asked by omgpwnedlol32 1 in Education & Reference ➔ Homework Help
Sorry I should have been more exact on what I needed. I need to know what to do with the 2x^2
2007-01-24 12:32:32 · update #1
15x - 5 = 2x^2 + 6x + 4
Add 5 to both sides.
15x = 2x^2 + 6x + 9
Subtract 15x from both sides.
0 = 2x^2 - 9x + 9
This trinomial can be factored.
0 = (2x - 3)(x - 3)
2x - 3 = 0 or x - 3 = 0
2x = 3 or x = 3
x = 3/2 or x = 3
2007-01-24 12:33:54 · answer #1 · answered by mirramai 3 · 1⤊ 0⤋
first you would get everything to one side and make the equation equal to zero. So move the 15x and the 5 to the right side and make sure to change their sign.
0 = 2^2 + 6x + 4 + 5 -15x
Then add like terms and get the following:
0 = 2^2 - 9x + 9
use the quadratic method for solving this
2007-01-24 20:33:44 · answer #2 · answered by MyStEriOuS 3 · 0⤊ 0⤋
15x - 5 = 2x^2 + 6x + 4
0 = 2x^2 - 9x + 9 after moving everything to one side
0 = (2x - 3)(x - 3)
two problems are left to solve for x
0 = 2x - 3
3 = 2x
3/2 = x
and...
0 = x - 3
3 = x
x = 3 or 3/2
2007-01-24 20:38:12 · answer #3 · answered by ¥¥Z 4 · 1⤊ 0⤋
move the (15x-5) to the right side, so the equation equals 0. then use the quadratic formula.
2007-01-24 20:30:33 · answer #4 · answered by stitchfan85 6 · 0⤊ 0⤋
Do your own homework, if you have questions on how to DO it, then ask.
I would advise combining like things. Such as: move -5 over to the other side. subtract 6x from both sides.
2007-01-24 20:28:53 · answer #5 · answered by Chrissy 3 · 0⤊ 0⤋