The polynomial is of degree 5, thus will have 5 roots either real or complex or both.
Using Descartes' rule of signs.
Count the number of sign changes in f(x)
There are no sign changes thus there are no real positive roots.
Find f(- x) then count the number of sign changes.
f(- x) = - + 3 - 8x³ + 14x² - 16x + 8
- / + / - / + / - / + ← 5 sign changes
Thus there are 5 negative real roots
Thus f(x) has 5 real roots → B
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answer: answer is c!
ok i got to organize the
3/15 and 12/55
3*4 equals 12 but not
5/18 = 25/90
18*5 = 90
hope that you!
one more happy customer!
answer: the answer is 30 miles per hour.
ft/s -> mphmph = ft/s 1.466667mph = 44 divided by 1.466667mph = 30.00000
- r3ktforgood ☕