Monday

December 22, 2014

December 22, 2014

Posted by **Jamie** on Tuesday, September 21, 2010 at 5:46pm.

I don't understand-could someone just explain the steps to solving this

- Algebra -
**Anna**, Tuesday, September 21, 2010 at 5:56pmI found this example on purplemath

You coul use this and apply knowledge.

This is the original equation. x2 + 6x – 7 = 0

Move the loose number over to the other side. x2 + 6x = 7

Take half of the x-term (that is, divide it by two) (and don't forget the sign!), and square it. Add this square to both sides of the equation.

Convert the left-hand side to squared form. Simplify the right-hand side. (x + 3)2 = 16

Square-root both sides. Remember to do "±" on the right-hand side. x + 3 = ± 4

Solve for "x =". Remember that the "±" gives you two solutions. Simplify as necessary. x = – 3 ± 4

= – 3 – 4, –3 + 4

= –7, +1

- Algebra -
**jamie**, Tuesday, September 21, 2010 at 6:10pmThank you

- Algebra -
**Anna**, Tuesday, September 21, 2010 at 6:11pmyou're welcome!

**Answer this Question**

**Related Questions**

Algebra - I was given this answers to a problems I solved but I do not ...

Algebra - I was given this answers to a problems I solved but I do not ...

Algebra 2 - Completing the square method allows you to solve any quadratic ...

Algebra - Which of the following statements is true? A. Any quadratic equation ...

algebra - Solve the quadratic equation by completing the square. -3x^2+9x=1 Not ...

math,help,algebra I - I need help can someone help me get unstuck and let me ...

Algebra Quadratic Equations - I am trying to define the different appraoches to ...

Math - Hi everyone. Would someone be able to help me with this problems? I know ...

algebra - Solve the following equation: k2 + 4k = 0 By factoring and By using ...

algebra - solve the quadratic equation by completing the square -3x^2+9=1