Multiplying complex numbers

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CCSS.HSN.CN.A.2

(3+4i)(-8-i)

• -5+3i

• -24-4i

• -24-4i²

• -20

• -20-36i

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CCSS.HSN.CN.A.2

Simplify the expression completely: $-3i\left(-1+4i\right)$  

•  $12+3i$  

•  $3i-12i^2$  

•  $-12-3i$  

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CCSS.HSN.CN.A.2

The expression $(-3+2i)(1-4i)$ is equivalent to:

•  $-2-2i$  

•  $5+14i$  

•  $-11-10i$  

•  $-3-8i$  

Tags

CCSS.HSN.CN.A.2

• -1

• 1

• i

• -i

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CCSS.HSN.CN.A.2

Multiply and Simplify. (1 - 5i)(1 - 2i)

• 1 + 7i

• 9 - 7i

• 1 - 7i

• -9 - 7i

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CCSS.HSN.CN.A.2

Question 3: Calculate the result of multiplying the complex number (2 - 3i) by the real number 5.

• 12 - 10i

• 7 - 8i

• 10 - 15i

• 3 - 5i

Tags

CCSS.HSN.CN.A.2

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CCSS.HSN.CN.A.2

Simplify: i⁷²

• i

• -i

• 1

• -1

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CCSS.HSN.CN.A.2

(i)(2i)

• -2

• -2i

• 2i²

• -2i²

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CCSS.HSN.CN.A.2