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Reverse FOIL (Factoring) Calculator

Result

Calculated result 45 Based on the values entered.
↗ Math

Reverse FOIL (Factoring) Calculator Factor a quadratic expression ax² + bx + c into (mx + n)(px + q). Reverse FOIL method. — free online calculator.

Formula

ax² + bx + c = (mx + n)(px + q); solve using discriminant
  • Reverse FOIL (Factoring) Calculator calculates its result from Mx, Periods, Px, Q. It uses the formula ax² + bx + c = (mx + n)(px + q); solve using discriminant. Change any input to recalculate the result instantly.
  • The main inputs are Mx, Periods, Px, Q. Enter them in the units and format shown in the calculator.
  • Keep comparable quantities in compatible units whenever the formula combines or compares them.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: Reverse FOIL (Factoring)

Inputs
  • Mx: 2
  • Periods: 3
  • Px: 4
  • Q: 5

Using Mx = 2, Periods = 3, Px = 4, Q = 5, the calculated result is 45.

Sample result: Calculating…

Frequently asked questions

What does the Reverse FOIL (Factoring) calculate?

Reverse FOIL (Factoring) Calculator Factor a quadratic expression ax² + bx + c into (mx + n)(px + q). Reverse FOIL method. — free online calculator.

Which values should I enter?

Enter Mx, Periods, Px, Q using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: ax² + bx + c = (mx + n)(px + q); solve using discriminant.

Why might my result differ from another source?

Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 7, 2026