# Math Help - How would I simplify these equation?

1. ## How would I simplify these equation?

Really confused. I'm a online student and the instructor taught us how to do this but she didn't use these type of equations so I'm really lost.

$-4 (3-7) + 2^2 (-6)$

-3 + 3 (5-12)

6 + =

2. Originally Posted by deekay930
Really confused. I'm a online student and the instructor taught us how to do this but she didn't use these type of equations so I'm really lost.

-4 (3-7) + 22 (-6)

-3 + 3 (5-12)

6 + =
Do the parentheses first. Then perform the multiplications. Lastly, add orr subtract.

I'll do the first for you.

1. Parentheses

$-4(-4)+22(-6)$ because $3-7=-4$

2. Multiply

$+16-132$ because a negative times a negative gives a positive.

$-116$

Have you ever heard of P.E.M.D.A.S.?

3. so like this?

-3 + 3 (5-12)

(5-12)= -7

3(-7)= -21

3+-21= -18

??

Yes, I understand the order of operations.

4. Originally Posted by deekay930
so like this?

-3 + 3 (5-12)

(5-12)= -7

3(-7)= -21

-3+-21= -24

??

Yes, I understand the order of operations.
Very good, but you forgot the negative in front of the 3. The correction si made in red.

5. Originally Posted by VonNemo19
Do the parentheses first. Then perform the multiplications. Lastly, add orr subtract.

I'll do the first for you.

1. Parentheses

$-4(-4)+22(-6)$ because $3-7=-4$
I'm sorry that was suppose to be : $-4(-4)+2^2(-6)$

6. Originally Posted by VonNemo19
Very good, but you forgot the negative in front of the 3. The correction si made in red.

Thanks so much.

7. Originally Posted by deekay930
I'm sorry that was suppose to be : $-4(-4)+2^2(-6)$
You know that $2^2 = 4$, so just replace it by $4$

8. Originally Posted by Bacterius
You know that $2^2 = 4$, so just replace it by $4$
So the answer would be -8?

9. Originally Posted by deekay930
So the answer would be -8?
Yes indeed!