-3(8-6)^3+27/9= -8?
I did it like PEMDAS starting with parenthesis to get my answer. Is this correct?
no , you couldn't have followed PEMDAS
http://www.google.ca/?gws_rd=cr&ei=6DRKUrWnLars2AWtioC4CA#q=-3(8-6)%5E3%2B27%2F9
-3(8-6)^3+27/9
=-3(2)^3 + 3
= -3(8) + 3
= -24+ 3
= -21
To check if -3(8-6)^3 + 27/9 equals -8, we can simplify the expression step by step.
1. Start by evaluating what's inside the parentheses: (8-6) = 2.
Now the expression becomes: -3(2)^3 + 27/9 = -8.
2. Next, calculate the exponent: (2)^3 = 2 * 2 * 2 = 8.
Now the expression becomes: -3(8) + 27/9 = -8.
3. Evaluate the multiplication: -3 * 8 = -24.
Now the expression becomes: -24 + 27/9 = -8.
4. Simplify the division: 27/9 = 3.
Now the expression becomes: -24 + 3 = -8.
5. Finally, add -24 and 3 together: -24 + 3 = -21.
As a result, the final answer is -21, not -8.
So, -3(8-6)^3 + 27/9 does not equal -8; it equals -21.