Question

Phân tích đa thức thành nhân tử

16x - 5x² -3

Answer 1

\(-5x^2+16x-3\)

\(=-5x^2+15x+x-3\)

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

\(=\left(x-3\right)\left(1-5x\right)\)

Answer 2

16x - 5x^2 - 3

=x - 5x^2 + 15x - 3

=x(1-5x) + 3(5x-1)

=3(5x-1) -x(5x-1)

=(3-x)(5x-1)

Answer 3

\(-5x^2+16x-3=\left(-5x^2+15x\right)+\left(x-3\right)\)

\(=-5x\left(x-3\right)+1\left(x-3\right)\)

\(=\left(x-3\right)\left(-5x+1\right)=\left(x-3\right)\left(1-5x\right)\)

Answer 4

-5x² + 16x - 3

= -5x² + 15x + x - 3

= -5x( x - 3 ) + 1( x - 3 )

= ( x - 3 )( 1 - 5x )