Question

find the zeros of x cubed + 3x squared - x + 45

Answer 1

Answer:

3 is the answer.........

Answer 2

Answer:

STEP

1

:

Equation at the end of step 1

(((x3) - 3x2) - x) - 45

STEP

2

:

Checking for a perfect cube

2.1 x3-3x2-x-45 is not a perfect cube

Trying to factor by pulling out :

2.2 Factoring: x3-3x2-x-45

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1: -x-45

Group 2: x3-3x2

Pull out from each group separately :

Group 1: (x+45) • (-1)

Group 2: (x-3) • (x2)