Question

Phân tích đa thức thành nhân tử :  x⁵ – x⁴ – 30x³

Answer 1

x⁵-x⁴-30x³=x³(x²-x-30) = x³(x-6)(x+5) 

Answer 2

\(x^5-x^4-30x^3=x^3\left(x^2-x-30\right)=x^3\left(x-6\right)\left(x+5\right)\)

Answer 3

\(x^5-x^4-30x^2=x^2\left(x^2-x-30\right)=x^2\left(x+5\right)\left(x-6\right)\)

Answer 4

\(=x^3\left(x^2-x-30\right)=x^3\left(x-6\right)\left(x+5\right)\)

Answer 5

\(x^5-x^4-30x^3\)

\(=x^3\left(x^2-x-30\right)\)

\(=x^3\left(x-6\right)\left(x+5\right)\)