# Mathematics I (Math 1132)

Durham College, Mathematics
Free
• 42 lessons
• 0 quizzes
• 10 week duration
• ##### Measurements

An introduction to numerical computation. Emphasis is placed on scientific and engineering notation, the rule of significant figures, and converting between SI and Imperial units.

• ##### Fractions, Percentage, Ratios and Proportion

Emphasis here is placed on understanding fractions, percent, and using ratios to compare quantities and set up proportions to solve problems.

• ##### Geometry

This unit focuses on analyzing and understand the characteristics of various shapes, both 2D and 3D.

## Mathematics I (Math 1132)

### Factor by Grouping

Although this concepts was briefly discussed in one of the earlier lessons, you learned that sometimes you may need to combine several of the techniques to factor a single expression. As a result, to factor the expressions found in this section, you’ll have to device a plan before starting because you might run into errors or endless loops trying to figure these out.

To start, you’re encouraged to re-watch a video link that was first presented in the common factoring lesson. At the time, you couldn’t factor Question (3) because you hadn’t learned how to factor a difference of squares. You’ll notice now that it’s a little more approachable:

Now for some harder examples. Try attempting each question before viewing its solution!