Question

How do you simplify `( 5a^2 - 10 ab)/(2b - a)`?

Answer 1

`(color(green)( 5a^2 - 10 ab))/(2b - a)`

`color(green)( 5a^2 - 10 ab) = 5a(a-2b)`

Rewriting the expression as:
`(5a(a-2b)) /( 2b-a`

`=(-5acancel((2b-a))) /cancel(2b-a`

`=color(green)( -5a`