SOLUTION: find all zeros of the following polynimal. Write the polynimal in factored form.
f(x)=x^4+3x^2-40
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Question 836855: find all zeros of the following polynimal. Write the polynimal in factored form.
f(x)=x^4+3x^2-40
Answer by LinnW(1048) (Show Source): You can put this solution on YOUR website!
0 =x^4+3x^2-40
0 = (x^2 + 8)(x^2 - 5)
So x^2 + 8 = 0 or x^2 - 5 = 0
Take x^2 + 8 = 0
x^2 = -8
x =
x = or
For x^2 - 5 = 0
x^2 = 5
x = or
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