Question

phân tích đa thức thành nhân tử : x^2 ( x - 1 ) + 16 ( 1 - x )

Answer 1

\(x^2\left(x-1\right)+16\left(1-x\right)\)

\(=x^2\left(x-1\right)-16\left(x-1\right)\)

\(=\left(x-1\right)\left(x^2-4^2\right)\)

\(=\left(x-1\right)\left(x-4\right)\left(x-4\right)\)

Answer 2

=x²(x-1)-16(x-1)

=(x-1) (x²-16)

=(x-1)(x-4)(x+4)

Answer 3

\(x^2\left(x-1\right)+16\left(1-x\right)\)

\(=x^2\left(x-1\right)-16\left(x-1\right)\)

\(=\left(x-1\right)\left(x^2-4^2\right)\)

\(=\left(x-1\right)\left(x-4\right)\left(x-4\right)\)

Answer 4

x²( x - 1) + 16 ( 1 - x )

<=> x²( x - 1) - 4² ( x - 1 )

<=> ( x - 1) ( x ² - 4² )
<=> ( x - 1)( x + 4)( x - 4)