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3 years ago

What are the real and complex solutions of the polynomial equation? x^4-41x^2=-400

Mathematics

1 answer:

tankabanditka [31]3 years ago

7 0

<h3>Answer:</h3>

The real solutions are -5, -4, 4, 5. There are no complex solutions.

<h3>Step-by-step explanation:</h3>

The equation ...

... x^4 -41x^2 +400 = 0

can be factored as ...

... (x^2 -16)(x^2 -25) = 0

... (x -4)(x +4)(x -5)(x +5) = 0

So, all roots are real and are ...

... x ∈ {-5, -4, 4, 5}

_____

These are the values of x that make the factors zero.

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shepuryov [24]

Answer:

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Step-by-step explanation:

The third order polynomial is factored herein:

$x^{2}\cdot (x-11) - 7\cdot (x-11)$

$(x^{2}-7)\cdot (x-11)$

Which represents answer A.

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3 years ago

Please help!! :) :) ;)

otez555 [7]

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Step-by-step explanation:

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