An easy method to factorise an equation

hope this helps! it's just a bit easier than staring at the equation for about 10 minutes trying the find out the numbers! :)

HideShow resource information
  • Created by: Kelly:)
  • Created on: 30-05-11 11:09
Preview of An easy method to factorise an equation

First 92 words of the document:

Factorise the equation:
6y^2 + y ­ 12 = 0
You need find two numbers that add to give one and times to give
72.
The 72 comes from multiplying the 6 and 12.
So we can work out that we can use 8 and 9.
So our equation becomes:
6y^2 8y + 9y ­ 12 = 0
If we split this down the middle then we can create two different
brackets and then join them together, by factorising the equations
separately using only one bracket.
Notice how
these two brackets are the same.

Comments

No comments have yet been made

Similar Mathematics resources:

See all Mathematics resources »See all resources »