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3 years ago

5n2+100=30n , need help explaining how you would work this out

Mathematics

1 answer:

andreev551 [17]3 years ago

6 0

Answer:

n = 3 + i√11 , 3 - i√11

Step-by-step explanation:

This is a quadratic equation and the first step is to write it in standard form:

5n^2 - 30n + 100 = 0

Divide through by 5:

n^2 - 6n + 20 = 0

Completing the square:-

(n - 3)^2 - 9 + 20 = 0

(n - 3)^2 = -11

n - 3 = i√11 or - i√11

n = 3 + i√11 , 3 - i√11

(2 complex roots).

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3 years ago

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Molodets [167]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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4 years ago

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In lines 4-5, the author refers to a "fashion maven’s"

xxTIMURxx [149]

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Fynjy0 [20]

Answer:

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