Question

Factorise : x³- 9x² + 5x - 13 = 0​

Answer 1

Step-by-step explanation:

Divide

x³+9x²+23x+15 by (x+1).

Then , you will get quotient (x²+8x+15)

Now,

Factorie (x²+8x+15)

= (x²+5x+3x+15)

= x(x+5)+3(x+5)

= (x+5)(x+3)

answer is:

(x+1) (x+5) (x+3)