Posted by **Cassie** on Saturday, November 28, 2009 at 8:01pm.

solve: 5/2x+1/4x=9/4+x

- Math, not "12th grade" -
**Writeacher**, Saturday, November 28, 2009 at 8:21pm
Assistance needed.

Please type your __subject__ in the **School Subject** box. Any other words are likely to delay responses from a teacher who knows that subject well.

- 12th grade math -
**PsyDAG**, Sunday, November 29, 2009 at 10:29am
5/2x + 1/4x = 9/4 + x

Multiply both sides by 4x

10 + 1 = 9x + 4x^2

Bring all terms to one side of the equation.

4x^2 + 9x -11 = 0

Unfortunately, this equation does not factor. To get - 11, it factors into 11 and - 1 or -11 and 1. The other side (4x^2) can factor into both 2x or x and 4x. However, none of these combinations will give 9x. Do you have it written correctly?

- 12th grade -
**Arya**, Tuesday, December 1, 2009 at 4:56am
Continue with abc formula so x = -9 + sqrt257 / 8 or x = -9 + sqrt257 / 8

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