Question

How do you simplify `-(8-k)+8k(4k-7)`?

Answer 1

`32k^2-55k-8`

Explanation:

The first step is to distribute the brackets.

`rArr-(8-k)+8k(4k-7)`

`=color(blue)(-8)color(red)(+k) color(magenta)(+32k^2)color(red)(-56k)`

collecting like terms.

`color(magenta)(32k^2)color(red)(+k-56k)color(blue)(-8)`

`=32k^2-55k-8`