Question

x²- 3x^2- 9x - 5 factorize​

Answer 1

Answer:

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:

x^2-3x^2-9x-5

-2x^2-9x-5

-2x^2-10x+x-5

-2x(x-5)+1(x-5)

(-2x+1)(x-5)

Step-by-step explanation: By middle term splitting