IXL - Factor polynomials (Algebra 1 practice)

Factor completely.

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Learn with an example

question

Factor completely.

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key idea

Factoring perfect square trinomials:

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solution

Notice that

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is a perfect square trinomial because it can be written in the form

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where

and

is 3.

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Now use the formula for factoring perfect square trinomials.

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(

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The factored form of

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Finally, check your work.

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Expand

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Expand

Apply the distributive property (FOIL)

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Apply the distributive property (FOIL)

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Yes,

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Looking for more? Try these:

Lesson: Factoring expressions

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Teacher tools

Work it out

Not feeling ready yet? These can help:

X.5Factor quadratics with leading coefficient 1

X.6Factor quadratics with other leading coefficients

X.7Factor quadratics: special cases

X.8Factor by grouping

Lesson: Factoring expressions

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