Collecting like terms helps simplify the expression without ... collected and the symbol before each term is moved with each term. The expression 5𝒎³ + 4𝒎³ + 3𝒏² – 𝒏² + 𝒏 ...
To expand a bracket means to multiply each term in the bracket by the expression outside the bracket ... Expanding brackets involves using the skills of simplifying algebra.
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