Question

How do you simplify `3r^2+ -8+ -10r^2+ -4r-r`?

Answer 1

`-7r^2 - 5r -8`

Explanation:

Step 1 is to group like terms and then combine like terms:

`3r^2 + -8 + -10r^2 + -4r - r =>`

`(3r^2 + -10r^2) + (-4r - r) + -8 =>`

`(3 + -10)r^2 + (-4 - 1)r + -8`

`-7r^2 + -5r + -8 =>`

`-7r^2 - 5r -8`