Contents

Intermediate Algebra Topic 2a: Symbols
Substituting negative values 7
This display is based on a typical GCSE examination question. You can change some of the details in the question and then see the answer, step by step.

	Algebra is a language with rules. 2b means 2 x b, b² means b x b. cd means c x d. You also need to know the rules for adding, multiplying and dividing negative numbers. Still need more explanation?