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Operations with Polynomials (Cambridge O Level Additional Maths)
Revision Note
Expanding Brackets
What is a polynomial?
- A polynomial is an algebraic expression consisting of a finite number of terms, with non-negative integer indices only
What do I need to know about expanding brackets?
- Expanding brackets is now extended to include
- brackets with more than 2 terms
- brackets that are polynomials (beyond linear)
- To expand two brackets, each term in the first set of brackets must be multiplied by each term in the second set of brackets
- If there are more than 2 brackets to expand, only work with a pair at a time
- You may have seen or used FOIL to expand quadratic expressions
- that is helpful but is a special case (shortcut) of this more general approach
- If you are trying to expand a two term bracket to a higher power (i.e. ) then use the binomial expansion
Worked example
Worked example
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