Question

Factories
${ \times }^{3 } - {3x}^{2} - 9x - 5$
​

Answer 1

DERIVED SOLUTION :

( X + 1 ) ² × ( X - 5 )

STEPS :

x³ - 3x² - 9x - 5

Here , write 3x² and 9x in differences forms

x³ + x² - 4x ² - 4x - 5x - 5

Factorise the expressions

x² × ( x + 1 ) - 4x ( x + 1 ) - 5 ( x + 1)

( x + 1 ) × ( x² - 4x - 5 )

Convert into difference forms

( x + 1 ) × ( x² + x - 5x - 5 )

( x + 1 ) × ( x ( x + 1 ) - 5 ( x + 1 ) )

Factorise the expressions

( x + 1 ) ² × ( x - 5 )