Roseanna is working her problems from yesterday's assignment, and here is what she has down for the current problem she is working 23 - 5 = 4 (1)
(722 – 5) 3
4. (2)
23 - 5 = 4
(3)
20 - 5(+5) = 4 (+5) (4)
를 을
(5)
z = or 4.5 (6)
9
22
2

2

step-by-2step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

a

step-by-step explanation:

a

step-by-step explanation: