SOLUTION: I had a question please help Subtract. (1.3x^3+4.6x^2-3.3x) - (-4.2x^3-4.2x^2+18) I plugged it in but the computer says that its an incomplete input. And there is no solution

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I had a question please help Subtract. (1.3x^3+4.6x^2-3.3x) - (-4.2x^3-4.2x^2+18) I plugged it in but the computer says that its an incomplete input. And there is no solution      Log On


   

Question 623035: I had a question please help
Subtract. (1.3x^3+4.6x^2-3.3x) - (-4.2x^3-4.2x^2+18)
I plugged it in but the computer says that its an incomplete input. And there is no solution to it. I also did it with the calculator but it gives me an error sign????
Can anyone please help solve this problem
Found 2 solutions by Earlsdon, mykasha:
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
%281.3x%5E3%2B4.6x%5E2-3.3x%29-%28-4.2x%5E3-4.2x%5E2%2B18%29 Remove the parentheses and simplify.
1.3x%5E3%2B4.6x%5E2-3.3x%2B4.2x%5E3%2B4.2x%5E2-18 Combine like-terms.
5.5x%5E3%2B8.8x%5E2-3.3x-18

Answer by mykasha(37) About Me  (Show Source):
You can put this solution on YOUR website!
5.5x^3+8.8x^2-3.3x-18