One factor of x^4+x^2-20 is x^2+5. The o...

One factor of `x^4+x^2-20` is `x^2+5.` The other factor is `x^2-4\ ` (b) `x-4` (c) `x^2-5` (d) `x+2`

A

`x^(2)-4`

B

`x-4`

C

`x^(2)-5`

D

`x+2`

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The correct Answer is:

A

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