In algebra, letters are used to stand for values that can change (variables) or for values that are not known (unknowns). A term is a number or letter on its own, or numbers and letters multiplied ...

Factorising is the opposite process of expanding brackets. A factorised answer will always contain a set of brackets. Factorise \(6x + 9\). To factorise this expression, look for the HCF of \(6x\) and ...

Math Riddles for Class 8: Check out Algebraic Expressions Class 8 Puzzles for Preparing Important Topics for Class 8 Mathematics. Learn the tricks and solutions for algebraic problems. Math Riddles: ...

A query-expression is one or more table-expressions. Multiple table expressions are linked by set operators. The following figure illustrates the relationship between table-expressions and ...