Learn about a factorization method called "grouping." For example, we can use grouping to write 2x²+8x+3x+12 as (2x+3) (x+4).

Solving circuits with differential equations is hard. If we limit ourselves to sinusoidal input signals, a whole new method of AC analysis emerges. Created by Willy McAllister.

Break down the process of taking common factors from trinomials. Learn how to identify the greatest common factor of a trinomial expression and use it to simplify the expression. Follow …

Factor quadratics of the form ax²+bx+c.

Sal factors 4y^2+4y-15 as (2y-3) (2y+5) by grouping. Created by Sal Khan and Monterey Institute for Technology and Education.

Learn how to factor quadratic expressions as the product of two linear binomials. For example, 2x²+7x+3=(2x+1)(x+3).

Tie together everything you learned about quadratic factorization in order to factor various quadratic expressions of any form.

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Explore quadratic equations and learn to factor them with Khan Academy's interactive lessons and practice exercises.

Can we be more efficient? If you feel comfortable with the process of factoring out the GCF, you can use a faster method: