Question

factorize 3x^3-4x^2-12x+45

Answer 1

Answer:

1) 2.359

2) 6.359

Step-by-step explanation:

3x2-12x-45=0 

Two solutions were found :

 x =(4-√76)/2=2-√ 19 = -2.359

 x =(4+√76)/2=2+√ 19 = 6.359

Step by step solution :

Step  1  :

Equation at the end of step  1  :

(3x2 - 12x) - 45 = 0

Step  2  :

Step  3  :

Pulling out like terms :

 3.1     Pull out like factors :

   3x2 - 12x - 45  =   3 • (x2 - 4x - 15) 

Hope it will help you