Question

Find the number of real roots of
${x}^{6} - {x}^{5} + 2 {x}^{4} + 7 = 0$


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Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

(

x

−

4

)

2

+

(

x

−

5

)

2

+

(

x

−

6

)

2

=

0