Question

How do you simplify `x^2-(3x-2) + 2x(4x-1)`?

Answer 1

`9x^2-5x+2`

Explanation:

First we have to expand all the factors :
`x^2-(3x-2)+2x(4x-1)`
`=x^2-3x+2+8x^2-2x`

Grouping:

`=x^2+8x^2-3x-2x+2`

Adding the coefficient for similar terms :
`=9x^2-5x+2`