In algebra, letters are used when numbers are not known. Algebraic terms, such as \(2s\) or \(8y\), leave the multiplication signs out. So rather than \(2 \times s\), write \(2s\), and rather than \(8 ...
Why not try another algebraic expressions quiz? The questions in this quiz are suitable for GCSE maths students studying expressions, simplifying expressions, expanding brackets, expanding double ...
Eric Larson and Isabel Vogt have solved the interpolation problem — a centuries-old question about some of the most basic objects in geometry. Some credit goes to the chalkboard in their living room.
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