Tuesday

July 22, 2014

July 22, 2014

Posted by **Beth Anne** on Tuesday, September 28, 2010 at 4:26pm.

But then what do I do-I'm totally confused-Answers are

{-2,4}

{2,4}

{-2/3,4}

{2/3,4}

Please direct me or show the steps, just don't give me the answer because I still won't get it.I think it is -2/3,4 but I'm not sure-even if that is correct, please show me the steps.

Thank you

- Math -
**bobpursley**, Tuesday, September 28, 2010 at 5:37pmI would factor it.

(3x+2)(x-4)=0

x= -2/3, or x=4

- Math -
**Henry**, Tuesday, September 28, 2010 at 6:09pm3x^2 - 10x - 8 = 0,

Factor using the A*C Method:

A * C = 3 * -8 = -24 = 2 * -12,

3x^2 + (2x - 12x) - 8 = 0.

Group the 4 terms into factorable pairs:

(3x^2 - 12x) + (2x - 8) = 0,

3x(x - 4) + 2(x - 4) = 0,

Factor (x - 4) from each term:

(x - 4) (3x + 2) = 0,

x - 4 = 0,

x = 4.

3x + 2 = 0,

3x = -2,

x = -2/3.

Solution set: x =-2/3, and x = 4.

**Related Questions**

Algebra - Determine the zeros of the function 3x^2 -8=10x. I know I rewrite it ...

Math - Find the equation of the tangent line 5x^2+y^2=14 at (1,3). P.S: It's ...

Math - Can someone please check my answers below for accurateness? The ...

Decartes Rules - Use Decartes Rule of signs to determine the possible number of ...

Intermediate Algebra - Determine whether the point (1, 8) is a solution of the ...

Math Algebra 1 - i was wondering if anyone could help me on this problem. expand...

Algebra HELP! - Consider the function h as defined. Find functions f and g so (f...

how about his one - -7+ 5x = 10x-2? im not sure I know its -1, but im not sure ...

Math - I need help with finding the zeros of the function: x^4+10x^2+9.

Decartes Rule of Signs - Could you explain to me decartes Rule of signs? Here ...