SOLUTION: Please simplify: 1. -(2n-1)-(3n+2)+3 Evaluate the following expression when a=2 and b=-1 2. 3a to the second power -b to the second power

Algebra ->  Exponents -> SOLUTION: Please simplify: 1. -(2n-1)-(3n+2)+3 Evaluate the following expression when a=2 and b=-1 2. 3a to the second power -b to the second power      Log On


   

Question 653139: Please simplify:
1. -(2n-1)-(3n+2)+3
Evaluate the following expression when a=2 and b=-1
2. 3a to the second power -b to the second power
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

-1%2A%282n-1%29+-1%2A%283n%2B2%29+%2B+3  |Removing Parenthesis and combining Like Terms

-2n+%2B+1+-+3n+-+2+%2B+3+=+-5n+%2B+2+



3a%5E2+-+b%5E2  | Evaluating expression when a=2 and b=-1

3%282%29%5E2+-+%28-1%29%5E2+=+11