Question

x^3-3x^2-9x-5:factorize this​

Answer 1

Step-by-step explanation:

x³ - 3x² - 9x - 5

= x³ + x² - 4x² - 4x - 5x - 5

= x²( x + 1) - 4x ( x + 1) - 5(x + 1)

= (x + 1)(x² - 4x - 5)

= (x + 1)(x² -5x + x - 5)

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

hence, (x +1), (x -5) and (x +1) are the factors of given polynomial

Answer 2

Answer:

Here

${x}^{3} - {3x}^{2} - 9x - 5 \\ = {x}^{3} - 3x(x - 3) - 5 \\ = x( {x}^{2} - 3(x - 3) - 5$

hope it helps ✌