SOLUTION: (8X 4 - 5X 3 + 7X 2 - 4X + 1) - (2X 4 - 5X 3 + 2X 2 - 4X + 3) Perform the indicated operations. Can someone please show me how? Thanks!

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: (8X 4 - 5X 3 + 7X 2 - 4X + 1) - (2X 4 - 5X 3 + 2X 2 - 4X + 3) Perform the indicated operations. Can someone please show me how? Thanks!      Log On


   

Question 62952: (8X 4 - 5X 3 + 7X 2 - 4X + 1) - (2X 4 - 5X 3 + 2X 2 - 4X + 3)
Perform the indicated operations. Can someone please show me how? Thanks!
Answer by 303795(602) About Me  (Show Source):
You can put this solution on YOUR website!
%288X%5E4+-+5X%5E3+%2B+7X%5E2+-+4X+%2B+1%29+-+%282X%5E4+-+5X%5E3+%2B+2X%5E2+-+4X+%2B+3%29
Multiply all the terms inside the second bracket by -1 (The 1 is implied ). The first bracket can be removed without any problems as there is no number in front of it.
8X%5E4+-+5X%5E3+%2B+7X%5E2+-+4X+%2B+1+-+2X%5E4+%2B+5X%5E3+-+2X%5E2+%2B+4X+-+3 Now add like terms
6X%5E4+%2B+5X%5E2+-+2