Common Core Standard HSN-CN.B.5 Questions

(+) Represent addition, subtraction, multiplication, and conjugation of complex numbers geometrically on the complex plane; use properties of this representation for computation. For example, (-1 + √3 i)³ = 8 because (-1 + √3 i) has modulus 2 and argument 120°.

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Grade 9 Complex Numbers CCSS: HSN-CN.B.5

Select the answer choice that best represents your answer when you simplify the following expression:

$-6i(10i + 2)$

$4i + 12i$
$-16i^2 + 12i$
$-12i + 60$
$12i - 60$

Grade 10 Radicals CCSS: HSN-CN.B.5

$3sqrt((-25))$

15i
15√(-1)
3.87298335i
3.87298334621

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