IGCSE Maths Edexcel A 4MA1

2.7: Quadratic equations

#2.7A

solve quadratic equations by factorisation (limited to $x^2 + bx + c = 0$ )

*Solve $x^2 + x - 30 = 0$ *

#2.7B

solve quadratic equations by factorisation

$2x^2 - 3x + 1 = 0$

$x(3x - 2) = 5$

#2.7C

solve quadratic equations by using the quadratic formula or completing the square

#2.7D

form and solve quadratic equations from data given in a context

#2.7E

solve simultaneous equations in two unknowns, one equation being linear and the other being quadratic

$y = 2x - 11, x^2 + y^2 = 25$

$y = 11x - 2, y = 5x^2$

2.6

Simultaneous linear equations

2.8

Inequalities