Loading

Module 1: Factors of polynomials

Notes
Study Reminders
Support
Text Version

Factorising polynomials

Set your study reminders

We will email you at these times to remind you to study.
  • Monday

    -

    7am

    +

    Tuesday

    -

    7am

    +

    Wednesday

    -

    7am

    +

    Thursday

    -

    7am

    +

    Friday

    -

    7am

    +

    Saturday

    -

    7am

    +

    Sunday

    -

    7am

    +

XSIQ
*

Intermediate Mathematics - Factorising polynomials

Factorising polynomials

(a) Take out any common factors

(b) Check the discriminant b- 4_ac_

if _b_² - 4_ac_ < 0 the expression cannot be factorised

if _b_² - 4_ac_ = 0 the expression is a perfect square

if _b_ ² - 4_ac_ 0 the expression can be factorised

(c) If the discriminant is positive try "trial and error method"

(d) If "trial and error method" is not possible for the general expression

(e) Important Identities

(_x ± y_)² ≡ _x_² + 2_xy_ + _y_²

Previous | Next