Question 162884
-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]