Solve for y (complex solution)
y=\sqrt{7}i\approx 2.645751311i
Assign y (complex solution)
y≔\sqrt{7}i
Assign y
\text{Indeterminate}
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y=\sqrt{9-16}
Calculate -3 to the power of 2 and get 9.
y=\sqrt{-7}
Subtract 16 from 9 to get -7.
y=\sqrt{7}i
Factor -7=7\left(-1\right). Rewrite the square root of the product \sqrt{7\left(-1\right)} as the product of square roots \sqrt{7}\sqrt{-1}. By definition, the square root of -1 is i.
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