Question

Divide (-3x^2 - 9x) ÷ (x + 3)
please explain/show work! <33

Answer 1

Explanation:

`( - 3 {x}^(2) - 9x) / (x + 3)`

This is the original equation so you will open the brackets.

`- 3 {x}^(2) - 9x / x + 3`

The x will cross the division sign making it times x.

`3 {x}^(2) - 9x * x = 3`

So you will proceed to multiply the 9x by x making it;

`3 {x}^(2) - 9 {x}^(2) = 3`

So you will subtract 9x² from 3x² which won't be possible so it will be negative.

`- 6 {x}^(2) = 3`

Then you will square root both sides making it;

`- \sqrt{6 {x}^(2) } = √(3)`

So the ² will cancel the √ leaving

-6x=√3

-6x=1.73(Divide both sides by -6)

x=0.288

That's the final answer.