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BigorU [14]
2 years ago
11

What are roots of the equation -90=x (x-18)

Mathematics
1 answer:
daser333 [38]2 years ago
4 0

Answer:

-90=x(x-18)

-90=x^{2}-18x

0=x^{2}-18x+90

x=9+3i   or   9-3i

Step-by-step explanation:

you need to use quadratic formula and you will find square root a negative ( -9 ), which is an imaginary no.

square root (-9) = 3i

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Answer:

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Step-by-step explanation:

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Number of years after which the cost of the jetski has to be determined = 7
Then
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6 0
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Solve for x.<br> -5/4x = -30<br> Simplify your answer as much as possible.
zlopas [31]

Answer:

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Thus, x= -30 x -4/5

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I hope this helped!!

~ Penny

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