Question

Find the real zeros of f(x) = x4 + 2x3 + x - 3 using the graphing calculator.

Select one:
a. -2.39, 0.89
b. -2.09, 0.75
c. -3.12, 1.18
d. -1.79, -1.37

Answer 1

@terenzreignz

Answer 2

Have you attempted graphing it on a graphing calculator yet? If so, what'd it say?

Answer 3

http://www.wolframalpha.com/input/?i=plot+x^4+%2B+2x^3+%2B+x+-+3+

Answer 4

If you look at the graph, you see that the answer is d

Answer 5

ok thanks

Answer 6

YW