Solving quadratic equations using the factorisation method.
The Form of a quadratic equation where a ≠ 0ax2+ bx + c = 0In order to solve we need to create one term made up of factors.One or more of these factors must equal zero.Questions we will work through:10x2 + 5x = 02x2-x -3 = 04 + 3x = x2x2- 9 = 0Solution Steps:Check if it’s in the correct formCheck to see if it’s got a common factor Factorise accordinglySolve each factor for x = 0
CE
Related Maths GCSE answers
All answers ▸a) A line passes through (0,9) and (3,12) write down the equation of this line . b) A line perpendicular to the line in part a passes through the point (3,14) write the equation of this line.)
If 5x + 3y = 27 and 6x - 2y = 10, find x and y
Factorise fully 6xyz + 24x^2yz + 18xy^3z^2
Show that (x + 1)(x + 3)(x + 5) can be written in the form ax^3 + bx^2 + c^x + d where a, b, c and d are positive integers.