Thread: simplify

Hi how can i simplify 3a^3b multiplied by 4(ab)^2.

Also how can i factorise x^2-4 and x^2-5x+6


Thank you

first one.

Rules of indices maybe? do you know them ?

difference of two square ?

factoring quads ?

have you never done a question like these before ?

Originally Posted by Chez_

Hi how can i simplify 3a^3b multiplied by 4(ab)^2.

Also how can i factorise x^2-4 and x^2-5x+6


Thank you

(Constants are multiplied and the powers are added)


(This is difference of two squares e.g. )



(Here you have to see what two values can be used that allow us to obtain by multiplying and by adding)

Originally Posted by Chez_

Hi how can i simplify 3a^3b multiplied by 4(ab)^2.

Also how can i factorise x^2-4 and x^2-5x+6


Thank you

Tip: Review over exponents in algebra


Tip: When you need to factor a term like this, it is usually a multiplication of conjugates.


Tip: Look at the constant term and list all the ways you can multiply two numbers to equal it. Then find the pair of numbers that add up to the coefficient in the middle.



You want where and