a) When factorising quadratic expressions in the form x2 + bx + c b) When factorising quadratic expressions in the form ax2 + bx + c Remember:Expressions with three terms like x2+ 6x + 5 and 2x2+ 5x + 3 are known as a trinomials. 3. Differences of two squares Using the differenc...
Factorising quadratics 6x2 + x - 2 is in the form ax2 + bx + c So a = 6, b = 1, c = -2 You need to find 2 numbers which multiply to give ac (in this case -12) and add to give b (in this case +1) Now list the factors of ac 1 -12 -1 12 2 -6 -2 6 3 -4...