Example
Solving by Factoring
Solve the quadratic equation by applying the factoring method.
Step 1 — Write in standard form. Subtract and add to both sides:
Step 2 — Factor the quadratic expression.
Step 3 — Apply the Zero Product Property. Set each factor equal to zero:
Step 4 — Solve each linear equation:
Step 5 — Check both solutions by substituting into the original equation : For : and ✓ For : and ✓ The solutions are and .
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Updated 2026-04-30
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Intermediate Algebra @ OpenStax
Ch.6 Factoring - Intermediate Algebra @ OpenStax
Algebra