Question

-x^2+-13x=36

Answer 1

This is a quadratic equation in x.

Answer 2

First, you need everything on one side equaling zero.
Start by subtracting 36 from both sides.
What do you get?

Answer 3

x=−4 or x=−9

Answer 4

hey is that right? why is there a "+" and a "-" ?

Answer 5

u sure its not just a minus?

Answer 6

@MekaylaCox
If you want to give out answers, it would be helpful if you explained how you got there.

Answer 7

I am
Step 1: Subtract 36 from both sides.
−x^2−13x−36=36−36
−x^2−13x−36=0

Step 2: Factor left side of equation.
(−x−4)(x+9)=0

Step 3: Set factors equal to 0.
−x−4=0 or x+9=0
So....x=−4 or x=−9

Answer 8

Solutions

X = -9
X = -4

Answer 9

@MekaylaCox

Great explanation, and you are correct, but I would do it differently.
Look at my extra step, 1b, below.

Step 1: Subtract 36 from both sides.
−x^2−13x−36=36−36
−x^2−13x−36=0

Step 1b: Multiply both sides by -1 to end up with x^2 instead of -x^2:
x^2 + 13x + 36 = 0

Step 2: Factor left side of equation.
(x + 4)(x + 9) = 0

Step 3: Set factors equal to 0.
x + 4 = 0 or x + 9 = 0
So....
x=−4 or x=−9

Answer 10

We get the same thing whats the difference??