Factorization Calculator with Graphs

Step-by-step factoring + see the graph and roots (x‑intercepts)

Factor Quadratic: ax² + bx + c

x
Factored Form:
(2x − 1)(2x + 1)
Step-by-Step Solution
Graph of f(x) = ax² + bx + c (roots in red)

Difference of Squares: (ax)² − b²

( x)² − ² e.g., (2x)² − 3² = 4x² − 9
Factored Form:
(2x − 3)(2x + 3)
Step-by-Step Solution
Graph of f(x) = (ax)² − b² (roots in red)

Perfect Square Trinomial: a²x² ± 2abx + b²

x + e.g., 4x² + 12x + 9
Factored Form:
(2x + 3)²
Step-by-Step Solution
Graph of perfect square (roots in red)

Factor by Grouping (4 terms)

x
Example: x³ + 4x² + x + 4
Factored Form:
(x − 4)(x − 1)(x + 1)
Step-by-Step Solution
Graph of cubic (roots in red)
Factoring Rules
GCF: Always check for a common factor first.
Difference of Squares: a² − b² = (a − b)(a + b)
Perfect Square Trinomial: a² + 2ab + b² = (a + b)² ; a² − 2ab + b² = (a − b)²
Quadratic (x² + bx + c): Find factors of c that add to b.
Quadratic (ax² + bx + c): Use ac method or trial factors.
Grouping: For four terms, group in pairs and factor out common binomial.
Graph: The red dots show where the polynomial equals zero – the solutions!