# Solving quadratic equations by factoring

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##### Intros
###### Lessons
1. Solve by factoring a trinomial: $2x^2-12x+10=0$
2. Solve by factoring a difference of squares: $25x^2-49=0$
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##### Examples
###### Lessons
1. Solve by Factoring a Trinomial
Solve each equation by factoring.
1. $3x^2+x-10=0$
2. $7x^2+35=-42x$
2. Solve by Factoring a Difference of Squares
Solve each equation by factoring.
1. $x^2-36=0$
2. $36x^2-25=0$
3. $12x^3-75x=0$
4. $40-10x^2=0$
###### Topic Notes
Review the chapter on "Factoring" to refresh your memory if you don't quite remember how to factor polynomials. It will definitely help you solve the questions in this lesson!
Difference of Squares: $a^2-b^2=(a+b)(a-b)$