Answer:
STealing points
Step-by-step explanation:
and you
Rounding the number to the hundreds place, the answer would be 285.39.
Hope this helped!
Nate
Step-by-step explanation:
Answer:
x³ - 5x² + 81x - 405 = 0
Step-by-step explanation:
Complex roots occur in conjugate pairs.
Thus given x = - 9i is a root then x = 9i is also a root
The factors are then (x - 5), (x - 9i) and (x + 9i)
The polynomial is the the product of the roots, that is
f(x) = (x - 5)(x - 9i)(x + 9i) ← expand the complex factors
= (x - 5)(x² - 81i²) → note i² = - 1
= (x - 5)(x² + 81) ← distribute
= x³ + 81x - 5x² - 405, thus
x³ - 5x² + 81x - 405 = 0 ← is the polynomial equation
Answer:
-12x
Step-by-step explanation:
(-9x+1) - (3x+1)
-9x + 1 - 3x - 1
-12x
