
Course Category: Quadratic Equations in A-Level Maths|| 2.3
Factorising || 2.3 Quadratics || Key Skill #1
Factorising cubic equations by taking out the highest common factor and using techniques such as completing the square.
Completing The Square || 2.3 Quadratics || Key Skill #2
Expressing quadratics in the completed form (x+a)^2+b.
Completing The Square II || 2.3 Quadratics || Key Skill #3
Using the completed square to find the x and y intercepts and the minimum and maximum point of the quadratic graph and draw the graph.
Real Roots of a Quadratic Eqn || 2.3 Quadratics || Key Skill #4
Using a positive or non-zero discriminant to solve for a range of values for coefficients to have two distinct real roots.
One Real Root of a Quadratic Eqn || 2.3 Quadratics || Key Skill #5
Using a zero discriminant to solve for a range of values for for coefficients to have one root or equal roots or one repeated root.
No Real Roots of the Quadratic Eqn || 2.3 Quadratics || Key Skill #5
Using a negative discriminant to solve for a range of values for for coefficients to have no real roots or imaginary roots.
