Imaginary Roots of Negative Numbers

Practice Questions

GRE Subject Test: Math › Imaginary Roots of Negative Numbers

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1

$Simplify: \sqrt{-72}$

2

$Simplify: \sqrt{-98}$

3

$Simplify: 5\sqrt{12i^{2}}$

4

Evaluate:

$\left (2 + 3i \right )^{3}$

5

What are the imaginary root(s) of $\sqrt {-225}$ ?

6

$Simplify:\ \sqrt{-150}$

7

Simplify:

8

Simplify: $\sqrt{-243}$

9

$Simplify: \sqrt{-49}-\sqrt{-16}$

10

$Find\ all\ roots\ for: f(x)=3x^3-x^2+15x-5$

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