Question

How do you subtract `(7b ^ { 2} + 8b - 3) - ( 7b ^ { 2} - 8b - 8)`?

Answer 1

`16b+5`

Explanation:

Identify and combine like terms:

`(color(red)(7b^2)+color(blue)(8b)color(green)(-3))-(color(red)(7b^2)color(blue)(-8b)color(green)(-8))`

`color(red)(7b^2)+color(blue)(8b)color(green)(-3)color(red)(-7b^2)color(blue)(+8b)color(green)(+8)larr` Distribute the negative to each term

`cancelcolor(red)(7b^2-7b^2)+color(blue)(8b+8b)color(green)(-3+8)`

`color(blue)(16b)+color(green)(5)`