Two of the terms involve the variable \(x\) and two involve the variable \(y\). If there is only one of a letter, you only write the letter with no 1 in front of it, eg \(4b - 3b = b\) NOT \(1b\).

To factorise a trinomial expression, put it back into a pair of brackets. To find the terms that go in each bracket, look for a pair of numbers which multiply to give the last number and add together ...

Math Riddles: Today we bring fun and interactive Algebra math puzzles for students to prepare better for Class 8 Important Topic which is Algebraic Expressions and Identities. Students can learn and ...