Monday

January 26, 2015

January 26, 2015

Posted by **Lydia** on Saturday, March 10, 2007 at 3:47pm.

Solve (5x+4)^1/2-3x=0

Just so you know, it is to the 1/2 power.

Add 3x to both sides of the equation, then square both sides.

That should enable you to gather terms and factor.

Yeah, that's the part I understood. Could you help me with the factoring?

This is what I have as of now:

(5x+4)^1/2-3x=0

5x+4=3x^2

3x^2-5x-4=0

Go to the quadratic equation

x= -b +- sqrt (b^2=4ac) /2a

x= 5 +- sqrt (25+48) /6

x= 5 +- sqrt (73) /6

x= -0.590667291 ; x= 2.25733396

check my work.

Oh, really? We didn't learn about doing it like that, but I think it does work. Thanks!

wait, I got the same answers as you, but then I checked my work and neither worked

dang: error

(5x+4)^1/2-3x=0

5x+4=Mb>9x^2

typo

(5x+4)^1/2-3x=0

5x+4= 9x^2

That changes the quadratic to

9x^2 -5x -4=0

x= ( 5 +- sqrt (25 + 36*4))/18

check that.

yes it works! thanks a ton!

**Answer this Question**

**Related Questions**

Algebra - 89. Solve for x in the equation: 6/7x - 6 = -2 I posted this before, ...

algebra - 1 1 7 -y - -= - 2 8 8 please help me! It isn't clear to me what this ...

algebra - how do I do this Solve for x. 3x – 2y = 6 Add 2y to both sides and ...

ALGEBRA - I believe this answer to be correct. Just need to know. -13<= 4x-2&...

MATH PLEASE CHECK IT!!2 - m-2/m-5*m+5/m-2=-1 If your problem is this: (m - 2)/(m...

Math, rational inequalities - Please can someone help me solve this problem? 2/x...

math-calculus - so with this one i do the same thing multiplying what inside ...

Algebra - Solve problem by showing necessary steps to resolve. 0.06q + 14 = 0.3q...

Pre Cal.--Check my work? - Solve the system of equations: x - y - z = 2; x + 2y...

Variable - SOLVING EQUATIONS WITH THE VARIABLE ON BOTH SIDES Solve the equation...