Curriculum
Mathematics — First Preparatory
Unit 1: Numbers
0/10
Unit 2: Algebra
0/4
Unit 3: Statistics
0/6
Unit 4: Geometry
0/6
Text lesson
Algebraic Expressions and Formulas
Algebraic Expressions and Formulas
Lesson summary
Lesson summary
- An algebraic expression is made of terms, and each term has a coefficient and variables.
- We add and subtract like terms only.
- When removing brackets, multiply the outside factor by every term and take care of the signs.
- To substitute, replace each variable by its number, then calculate, taking powers and signs into account.
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