Calculator
Enter polynomial-style expressions like 2x^2-3x+4 or 4ab-2a+b. Put each factor in its own field.
Example Data Table
| Expression A | Expression B | Expression C | Expanded Product |
|---|---|---|---|
| x + 2 | x + 3 | — | x^2 + 5x + 6 |
| 2x^2 - 3x + 4 | x - 5 | — | 2x^3 - 13x^2 + 19x - 20 |
| a + b | a - b | a + 2b | a^3 + 2a^2b - ab^2 - 2b^3 |
| 3xy + 2y | x - 4 | — | 3x^2y - 10xy - 8y |
Formula Used
The calculator uses the distributive property. Each term in one expression multiplies every term in the next expression.
General rule: (a + b)(c + d) = ac + ad + bc + bd
Monomial rule: (kx^m y^n)(px^r y^s) = (kp)x^(m+r)y^(n+s)
After multiplication, like terms are combined by adding coefficients for identical variable parts.
How to Use This Calculator
- Enter the first factor in Expression A.
- Enter the second factor in Expression B.
- Add Expression C only when you need a third factor.
- Choose decimal precision and term order.
- Use optional values like x=2,y=3 for evaluation.
- Select step display when you want a full expansion table.
- Click the multiply button.
- Review the expanded result, terms table, and download options.
About This Multiply Expressions Calculator
This calculator helps you multiply algebraic expressions with less manual work. It is useful for homework, checking practice sets, and reviewing class steps. You can enter two factors or add a third factor when the problem is longer. The tool expands each term, combines like terms, and returns a clean final expression.
The layout keeps the page simple. The result appears above the form after submission. That makes checking easier on repeated runs. The form supports large screens with three columns, smaller screens with two columns, and phones with one column. The page stays readable without extra visual clutter.
The symbolic engine is designed for polynomial-style input. You can enter constants, single variables, multivariable terms, and exponents such as x^2, ab, or 3xy^2. Each factor should be entered in its own field. This keeps the parser reliable and the output consistent.
The calculator also includes useful study features. You can control decimal precision, sort terms by degree, show detailed multiplication steps, and evaluate the final expression with chosen variable values. The final terms table helps you inspect coefficients, variables, and degree. This is helpful when verifying simplification and structure.
Export options are included for practical work. You can download a CSV file for records, notes, or spreadsheet review. You can also download a PDF summary for sharing or printing. The example table gives quick reference cases, while the formula section reminds you of the distributive rule behind the result.
This tool works well for binomials, trinomials, and longer polynomial products. It is a fast way to expand expressions accurately and learn the pattern behind each term.
FAQs
1. What kinds of expressions can I enter?
You can enter polynomial-style expressions with letters, numbers, plus signs, minus signs, and exponents. Examples include x+2, 3x^2-4x+1, and 2ab-3b.
2. Does it support three factors?
Yes. Expression C is optional. When filled, the calculator first multiplies A by B, then multiplies that result by C.
3. Can I use more than one variable?
Yes. Terms like xy, 2ab, and 4x^2y are supported. Like terms combine only when the variable part matches exactly.
4. How does evaluation work?
Enter variable values in the format x=2,y=-1.5. The calculator substitutes those values into the final expanded expression and returns a numeric result.
5. Why must each factor be in a separate field?
The calculator multiplies factors field by field. Separate inputs improve accuracy and keep the symbolic expansion easier to validate and display.
6. What does compact term display do?
It removes the middle dot between coefficient and variables. For example, 3·x^2 becomes 3x^2. This gives a more traditional algebra style.
7. What is included in the CSV export?
The CSV file includes the entered expressions, expanded result, optional variable values, evaluated result when available, and a final terms table.
8. Can this replace handwritten steps?
It is best used as a checker and study aid. Turn on step display to compare each pairwise product with your handwritten work.