find what to multiply to get the Quadratic
It is called "Factoring" because you find the factors (a factor is something you multiply by)
Example :
The factors of x2 + 3x - 4 are:Example :
(x+4) and (x-1)
Well, let us multiply them to see:
(x+4)(x-1) | = x(x-1) + 4(x-1) |
= x2 - x + 4x - 4 | |
= x2 + 3x - 4 ![]() |
Multiplying (x+4)(x-1) together is called Expanding.
In fact, Expanding and Factoring are opposites:

No comments:
Post a Comment