Solve by taking square roots.
x^2 + 175 = 0

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x = ± 5i

Step-by-step explanation:

x² + 175 = 0 ( subtract 175 from both sides )

x² = - 175 ( take square root of both sides )

x = ± = ± = ± ( × × = ± 5i

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.