# Difference of Two Squares Calculator

> Evaluate and factor a² − b².

Page: https://askcalculators.com/calculator/difference-of-two-squares-calculator/
Definition: https://askcalculators.com/calculator/difference-of-two-squares-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/difference-of-two-squares-calculator/schema.json
Version: 1.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/difference-of-two-squares-calculator/?a=10&b=6

## Inputs
- a: a; type=number; required; default=10
- b: b; type=number; required; default=6

## Outputs
- difference: a² − b²; format=number; primary
- factoredForm: Factored form; format=text
- factors: Numeric factors; format=text

## Formula
a² − b² = (a − b)(a + b)

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.