Answer:
D
Step-by-step explanation:
Roots into factors:
x = -4 ----> (x + 4)
x = i -----> (x - i)
x = 5 -----> (x - 5)
(x + i)(x - 4)(x + 5)
(x - i)(x² - 4x + 5x - 20)
(x - i)(x² + x - 20)
x³ + x² - 20x - (ix² + ix - 20i)
x³ + (1 - i)x² - (20 + i)x + 20i
The answer is
0.000568902892652.
X2 - 8x + 15 = 0
(x - 3)(x - 5) = 0
critical points are at 3 and 5
Answer:
(x + 2)(x - 5)
Step-by-step explanation:
Here are the steps:


28 is 4 times 7, so we will rewrite it like that.

7 is 7 times 7, so we will rewrite it like that.

So the simplest form is,