Quadratic Equations

Quadratic Equations

Question 1

Any equation of the sort Ax2 + Bx + C = 0, which has a degree of 2 is called a Quadratic Equation. There are numerous methods of solving a quadratic equation. The most commonly used methods are; Factorization, Completing the squares method, Using quadratic formula and by Graph plotting method.

Factorization

In factorization, factors of the expressions are created using trial and error and then equated separately.

e.gx2 + 10x + 24 = 0

x2 + 6x + 4x +24 = 0

x(x+6) + 4(x+6)

(x+4)(x+6) = 0

x + 4 = 0;x + 6 = 0;

x = -4;x = -6

Completing the Squares

In this ...