SOLUTION: find the product of -5x(2x^3 - 5x +2) = -10x^4 - 25x^2 + 10 is that the right answer also do the addition: 7a^3 + 7a^2 + 4 -4a^3 + 9a - 5 2a^3 - 5a^2 + 9

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: find the product of -5x(2x^3 - 5x +2) = -10x^4 - 25x^2 + 10 is that the right answer also do the addition: 7a^3 + 7a^2 + 4 -4a^3 + 9a - 5 2a^3 - 5a^2 + 9      Log On


   

Question 162884: find the product of
-5x(2x^3 - 5x +2) = -10x^4 - 25x^2 + 10 is that the right answer
also
do the addition:
7a^3 + 7a^2 + 4
-4a^3 + 9a - 5
2a^3 - 5a^2 + 9a + 9

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
-5x(2x^3 - 5x +2) = -10x^4 - 25x^2 + 10 is that the right answer.
NO IT IS WRONG.
-10X^4+25X^2-10X IS THE CORRECT ANSWER.
[-5X*-5X=+25X^2]
[-5X*2=-10X]