f(X)=10x^2+8x^5-12x^3 求f(X)除以（-5x^2) f(x)乘以（x^2-1)_数学解答

f(X)=10x^2+8x^5-12x^3 求f(X)除以（-5x^2) f(x)乘以（x^2-1)

人气：419 ℃　时间：2020-10-02 00:19:59

解答

f(x)=2x^2(5+4x^3-6x)
f(x)/(-5x^2)=-2/5(5+4x^3-6x)
f(x)*(x^2-1)=2x^2(5+4x^3-6x)*(x^2-1)=8x^7-20x^5+10x^4+12x^3+10x^2