Question

Please Help Me?? Question: Simplify by using order of operations 7(-9 + 10) - 3 + 4

Question: Simplify 2n(-6) + 10(n - 12) + (-3)^2 - 12

Answer 1

What are the order of operations?

If you're not sure, I'll explain, but at least list what you know.

This is a very important part of math that you need to grasp otherwise you won't be able to progress past this point.

Answer 2

PEMDAS i think

Answer 3

correct...PEMDAS

7 (-9 + 10) - 3 + 4 --- do parenthesis first
7 (1) - 3 + 4
7 - 3 + 4
4 + 4
8 ===>solution

2n (- 6) + 10(n - 12) + (-3)^2 - 12 --- distribute through the parenthesis
-12n + 10n - 120 + (-3)^2 - 12 -- do exponents
-12n + 10n - 120 + 9 - 12 -- combine like terms
-2n - 132 + 9
-2n - 123===> solution

Answer 4

Thanks to All