PERIODDDDDDDSDDDDDDDDDDDDDD
(x + 7) (x - 4)
First, apply the FOIL method (a + b) (c + d) = ac + ad + bc + bd / Your problem should look like:

- 4x + 7x - 28
Second, gather the like terms. / Your problem should look like:

+ (-4x + 7x) - 28
Third, simplify. / Your problem should look like:

+ 3x - 28
Answer:
+ 3x - 28
Answer:
x³ − x² + 9x − 9 = 0
Step-by-step explanation:
Imaginary roots come in conjugate pairs. So if 3i is a root, then -3i is also a root.
(x − 1) (x − 3i) (x − (-3i)) = 0
(x − 1) (x − 3i) (x + 3i) = 0
(x − 1) (x² − 9i²) = 0
(x − 1) (x² + 9) = 0
x (x² + 9) − (x² + 9) = 0
x³ + 9x − x² − 9 = 0
x³ − x² + 9x − 9 = 0
Answer:
The answer is B
Step-by-step explanation:
Mean= 3
yell at me if im not right lol