## anonymous 3 years ago Simplify. 3 – 15 • 5 (1 point) • 0 • 78 • –72

1. anonymous

???

2. anonymous

-72

3. anonymous

Ya sure??

4. anonymous

It's -72

5. anonymous

yes. you multiply first...

6. anonymous

72 this is correct not negative

7. anonymous

〖(-3)〗^3/〖(-3)〗^2 (1 point) –3 729 9

8. anonymous

Follow PEMDAS. Multiply first. Then subtract. 3 - 15 * 5 3 - 75 -72

9. anonymous

(-3)^3/(-3)^2 -3 729 9 that the qwestion?

10. anonymous

Its -72. I used a calculator :) TRUST!!!

11. kirbykirby

Please learn these rules carefully :) There are so many of these kinds of posts on Facebook and people just use the operations from left to right! Prove them wrong!! lol.

12. anonymous

WTF there is no 72 theres 729?

13. anonymous

14. anonymous

15. anonymous

Yea pemdas. Idk where your gettin 729???

16. anonymous

$\frac{ -3^3 }{ -3^2 }$ Quotient of Powers: To divide powers with like bases, subtract the exponents. So you'd have: $-3^1 or -3$

17. anonymous

He posted a second question on here.

18. anonymous

The first question is -72. The seond one is -3.

19. anonymous

*second

20. kirbykirby

But remember that multiplication and division BOTH have the same priority. And addition/subtraction also have the SAME priority. So what if you encounter an expression with both multiplication and division for example? In that case, you would go from left to right.

21. anonymous

@JohnnieNeedsHELPBLAHH

22. kirbykirby

(Some people think because it's PEMDAS that you have to exactly follow that order). But bear in mind that there are some mnemonics out there that invert the MD and AS