##### Subchapters

- Are You Ready?
- Solving Equations by Factoring x² + bx + c
- Solving Equations by Factoring ax² + bx + c
- Using Special Factors to Solve Equations
- Study Guide Review
- Ready to Go On?
- Module 21 Assessment Readiness

##### Other chapters in Houghton Mifflin Harcourt Algebra 1, 2015

- Quantitative Reasoning
- Algebraic Models
- Functions and Models
- Patterns and Sequences
- Linear Functions
- Forms of Linear Equations
- Linear Equations and Inequalities
- Multi-Variable Categorical Data
- One-Variable Data Distributions
- Linear Modeling and Regression
- Solving Systems of Linear Equations
- Modeling with Linear Systems
- Piecewise-Defined Functions
- Rational Exponents and Radicals
- Geometric Sequences and Exponential Functions
- Exponential Equations and Models
- Adding and Subtracting Polynomials
- Multiplying Polynomials
- Graphing Quadratic Functions
- Connecting Intercepts, Zeros, and Factors
- Using Square Roots to Solve Quadratic Equations
- Linear, Exponential, and Quadratic Models
- Functions and Inverses