Quadratic Equations (Edexcel IGCSE Maths A: Foundation): Exam Questions

(i) Factorise $x^2+9x–22$

(ii) Hence solve $x^2+9x–22=0$

Solve by factorising.

$x^2+9x+20=0$

$x$= ....................... or  $x$ = .......................

Solve  $x^2–21x+20=0$

Show your working clearly.

Solve $x^2-x-12=0$

Solve.

$x^2-6x+15=3x-5$

$x=$..............  or $x=$..............