4.1 Adding exponents

Introduction

You can only add terms when the variables are the same:

4ab+6ab=10ab
4ab+6ad=4ab+6ad

The same rule goes for powers:

9x^2+2x^2=11x^2
9x^2+2x=9x^2+2x

Adding harder terms

If the terms are not in order simply group the terms into the right terms:

5i^2+6j^2.k+8i^2+3j^2.k
=(5i^2+3i^2)+(6j^2.k+3j^2.k)
=8i^2+9j^2.k

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