# Squaring Binomials

Lesson Plans > Mathematics > Algebra > ExpressionsPrint

## Squaring Binomials

No matter how many times you tell algebra students that (a + b)^{2} is not the same as a^{2} + b^{2}, there will always be some who forget, and try to square a binomial incorrectly. Below are some worksheets (with answer keys) for students to practice squaring binomials. I keep these on hand, and when I catch a student doing the process incorrectly, I hand them one of these.

Lesson by Mr. Twitchell

## Handouts/Worksheets

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## Squaring Binomials #1

Square the following binomials.- (x + 1)
^{2}

- (x - 3)
^{2}

- (2x - 1)
^{2}

- (3x + 5)
^{2}

- (+x)12
^{2}

- (3x + 2y)
^{2}

- (xy - z)
^{2}

- (-x + 4)
^{2}

- (-x3)y4
^{2}

- (0.1x - 10y)
^{2}

- (b
^{2}- 3a)^{2}

- (x
^{3}+ x^{2})^{2}

- (abc - def)
^{2}

- (9a + 10)
^{2}

- (-+ x)32
^{2}

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## Squaring Binomials #1: Answer Key

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## Squaring Binomials #2

Square the following binomials.- (x - 10)
^{2}

- (x + 7)
^{2}

- (2x - 11)
^{2}

- (x + y)
^{2}

- (x - 5y)
^{2}

- (3x
^{2}- 1)^{2}

- (x +32)12
^{2}

- (a
^{2}b - b^{2}a)^{2}

- (10 + 11x
^{2})^{2}

- (+x
^{2}y)y^{2}x^{2}

- (-1x)1y
^{2}

- (0.3a - 0.2b)
^{2}

- (3+ x)
^{2}

- (3+2)
^{2}

- (13 + x
^{4}y^{2})^{2}

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## Squaring Binomials #2: Answer Key

*This content is for teachers only, and can only be accessed with a site subscription.*

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## Squaring Binomials #3

Square the following binomials.- (x - 3b)
^{2}

- (x
^{2}+ 5x)^{2}

- (9 - 2)
^{2}

- (+122)
^{2}

- (x + 7x
^{3})^{2}

- (-xy)yx
^{2}

- (a - )12
^{2}

- (b + 0.2)
^{2}

- (100 - 1)
^{2}

- (100 + 1)
^{2}

- (x + 12)
^{2}

- (3xy - z)
^{2}

- ((ab)
^{2}- 1)^{2}

- (x+y)
^{2}

- (xy+yz)
^{2}

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## Squaring Binomials #3: Answer Key

*This content is for teachers only, and can only be accessed with a site subscription.*

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