Square of a Binomial Calculator

Expand a binomial square using the standard algebraic identity.

Last updated: June 2026 | By Patchworkr Team

Calculation steps

Square the first term.

Multiply the two terms and double the product.

Square the second term and combine the pieces.

Expansion

(x + 3)^2 = x^2 + 2(x)(3) + 3^2

What Does Squaring A Binomial Mean?

Squaring a binomial means multiplying the expression by itself and then combining like terms.

It expands to a^2 + 2ab + b^2.

It expands to a^2 - 2ab + b^2.

Related Tools

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