A quadratic expression is an expression with a highest power of x, as 2 or an equation with degreee 2 and the general orm is:
ax^2 + bx+C where a, b and c are numbers.
(For an expression with a coefficient of x equal to 1, (a=1), the given method can be used to factorise)
- Find 2 factors of the Constant Term (c), which should add to a coefficient of x
- Write the xpression as a product of two brackets, with a factor in each bracket
(Where the coefficient of x^2 is not a common factor)
- Factorise by having the common factor outside the bracket and a quadratic expression inside the bracket
- Furthur factorise the quadratic.
(Where the coefficient of x^2 is not 1 (But not a common factor))
- Write ax^2 as two factors and c as two factors.
- Multiply the factors of ax^2 with the factors of the constant term and they should add to bx
- Re-arrange the factors diagonally and write them in two brackets