Question

How do you simplify `(14x^2)/(2(x-2)) * (2x^2-2x-4)/(7x)`?

Answer 1

Factorise and cancel

Explanation:

`=(2*7*x*x)/(2(x-2))*( 2(x+1)(x-2))/(7*x)`

`=(cancel2*cancel7*cancelx*x)/(cancel2*cancel((x-2)))*(2(x+1)cancel((x-2)))/(cancel7*cancelx)`

`=2x(x+1)=2x^2+2x` (whichever you prefer)