IGCSE Maths Specification

Edexcel A 4MA1

Section 2.7: Quadratic equations

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#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

\(y = 2x - 11, x^2 + y^2 = 25\)

\(y = 11x - 2, y = 5x^2\)