How to do Algebraic Proof GCSE Maths revision Higher level exam questions include Algebraic fractions Edexcel GCSE Paper 1 February 2013 - Q21 Algebraic Proof Try the free Mathway calculator and problem solver below to practice various math topics. Express proofs in a form that clearly justifies the reasoning such as two-column proofs paragraph proofs flow charts or illustrations. 2 Prove that 3n 12 3n 12 is a multiple of 4 for all positive integer values of n.
The Corbettmaths video tutorial on algebraic proof.
Proof by algebraic reasoning Proof by exhaustion Disproof by counterexample The important thing about proving a conjecture is that every step must be justified. Proof by algebraic reasoning Proof by exhaustion Disproof by counterexample The important thing about proving a conjecture is that every step must be justified. This shows that the statement is true for these examples but to prove that it is true all the time we must use algebra. 2 Prove that 3n 12 3n 12 is a multiple of 4 for all positive integer values of n.