Monday

December 22, 2014

December 22, 2014

Posted by **Jenny** on Monday, September 1, 2008 at 9:03pm.

2x^2-18x=0, x^2=6x+7, 6y^2+5y-6=0

also I need help on this one

SOLVE FOR X CORRECT TO 4 DECIMAL PLACES

x^2+6x+2=0 2x+4=3x^2

- Math -
**Damon**, Tuesday, September 2, 2008 at 5:35am2x^2-18x=0

try to factor first

2x (x-9) = 0

so x = 0 or x = 9

x^2=6x+7

x^2 -6 x - 7 = 0

(x-7)(x+1) = 0

so x = 7 or x = -1

6y^2+5y-6=0

(6x-1)(x+1) = 0

x = 1/6 or x = -1

x^2+6x+2=0

if you can not factor, complete the square or use the quadratic equation

x = [ -b +/- sqrt (b^2 - 4 a c) ] / 2a

x = [ -6 +/- sqrt (36 - 8) ] / 2

use calculator to 4 places

**Answer this Question**

**Related Questions**

Algebra - i forgot how to solve these types of problems.. 2x^2-18x=0, x^2=6x+7, ...

Math - thanks for the answers, but I need to know how to solve the problems, so ...

math,bobpursley - Is this the correct way to solve these math problems and are ...

algebra 2 - Solve the equation for x. Round your answer to two decimal places. ...

Math - Solve the exponential equation. Use a calculator to obtain a decimal ...

Basic Math - I forgot how to solve for two variables... Please check if I solved...

Math - Solve for x,correct to TWO decimal places 4+5x>6x to the power 2

English - It is very rude of you to behave like that. It is very wise of you to ...

Logs. - Can you please help me with the following log. problems? thanxs! Solve ...

math help - Can some one help me with this one??? Consider the following ...