# Blog post week 5and 6

Factoring

To factor a number means to break it up into numbers that can be multiplied together to get the original number.

In order to solve quadratic equations by factoring. We should set he equation to equal zero. Secondly, Factor the non-zero side. Thirdly, use the zero factor property to set each factor equal to zero. Fourthly, solve each factor. Fifthly, reject extraneous(undefined) roots. Lastly, check the solution in the orginal equation!!

Using square roots to solve quadratic equations

In order to solve a quadratic equation by completing the square(using roots). We should write the equation such that the variable terms are on the left side and the constant term is on the right side. Secondly, divide the coefficient of x by 2 and square it. Thirdly, add this square value to both left and right side f the equation. Fourthly, write the left side of the equation as a perfect square binomial. Lastly, use the square root property!!