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College Algebra Unit 1 homework


#1

Lab workbook 0.3 Order of operations
Problem 21
Can someone explain how they got
-18 for the answer


#2

Here is how I got the answer. I solved the top part of the fraction 1st, then the bottom part. Finally multiplied by 6.

6* -8-4+(-4)-[-4-(-3)]/(4^2+3^2)/5
6* -8-4+(-4)-[-4+3]/(4^2+3^2)/5
6* -8-4+(-4)-[-1]/(4^2+3^2)/5
6* -8-4+(-4)+1/(4^2+3^2)/5
6* -8-4-4+1/(4^2+3^2)/5
6* -15/((16+9)/5)
6* -15/(25/5)
6* -15/5 = 6*-3 = -18


#3

Thank you.
I was multiplying the 6 by the top and the bottom before i reduced the fraction