Question

Find the real zeros of the following polynomial. f(x) = x\textsuperscript{4} - 8x Select all correct answers. Select all that apply: 3 -2 5 0 2 1

          Find the real zeros of the following polynomial.
f(x) = x\textsuperscript{4} - 8x
Select all correct answers.
Select all that apply:
3
-2
5
0
2
1
        
Find the real zeros of the following polynomial.
f(x) = x4 - 8x
Select all correct answers.
Select all that apply:
3
-2
5
0
2
1

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Elementary and Intermediate Algebra
Elementary and Intermediate Algebra
Alan S. Tussy, R. David Gustafson 5th Edition
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Find the real zeros of the following polynomial. fx=x-8x Select all correct answers Select all that apply: 3 S 0 2 1
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Transcript

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00:01 So in this question we're looking at the real zeros of the polynomial x squared minus 3.
00:07 And to find the zeros, we can go ahead and set this equal to 0 and see what solutions we get.
00:15 So there are different ways you can do this.
00:18 One way is to factor it, which you've been doing in other problems, where we have a difference of two squares here.
00:24 We can do that the same way.
00:27 We just have to rewrite this 3 as a square root.
00:35 So that's one way to do it.
00:38 For this kind of question, it might be a little easier if we go ahead and solve it this way, just by moving to 3 to the other side and getting x squared is equal to 3...
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