Curriculum
Course: Mathematics — Second Preparatory
Login

Curriculum

Mathematics — Second Preparatory

Unit 1: Real Numbers

0/10

Unit 2: Algebra

0/8

Unit 3: Geometry

0/12

Unit 4: Statistics

0/4
Text lesson

Factoring Trinomials

Mathematics — Second Preparatory

Factoring Trinomials

Steps when the leading coefficient is 1

Steps when the leading coefficient is 1

  1. Find two numbers whose product is c and whose sum is b.
  2. Write the expression as (x + m)(x + n).
  3. Check by multiplying. If the middle term is correct, the factoring is correct.
  • When searching for the two numbers, list the pairs whose product is the constant term, and choose the pair whose sum is the coefficient of x.
  • The sign of the constant term tells us the signs of the two numbers: if c is positive, the numbers have the same sign; if c is negative, they have opposite signs.
Factoring Trinomials · 2 / 6