# Maths Video Lesson 2 Revision eNotes

Contents

Lesson 2 - Factorising 4

Free Maths Tutorial 4

Factors Certainty 4

Common Factors 4

Grouping 3) Difference of two squares 5

Perfect Squares 6

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# Lesson 2 - Factorising

## Free Maths Tutorial

These revision notes have been brought to you by an experienced Maths teacher - Mr Tom Nolan. These notes can be read in conjunction with the Free maths tutorial linked below. You will find this tutorial under iRevise.com, junior cert, maths, videos. These notes are suitable for Junior Certificate Students and covers Factorising.

## Factors Certainty

1. Common Factors
2. Grouping
3. Difference of Two Squares

GRo

2

## Perfect Squares

Where it’s hidden

Evaluate without using a calculator

=

=

=-1.16

=1.16

=-2.-8

=2.-8

=-4.4

=4.-4

=1.6

=2.3

=-1.-6

=-2.-3

=6.12

=2.6

=3.4

=-1.-2

=-2.-6

=-3.-4

If its more than one

Quadratic Trinomials with more than one x2

Trial and Error

=-1.15

=1.-15

=3.-5

=-3.5

=-1.9

=1.-9

=3.-3

=-3.3

=-1.9

=1.-9

=3.-3

=-3.3