Textbook Question
Perform each operation. Write answers in standard form. -5i(3-i)²
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1. Equations & Inequalities
Complex Numbers
Multiple Choice
Identify the real and imaginary parts of each complex number.
A
B
C
D
Verified step by step guidance1
Understand that a complex number is generally expressed in the form \( a + bi \), where \( a \) is the real part and \( b \) is the imaginary part.
Given the complex number \( -4 - 9i \), identify the real part \( a \) and the imaginary part \( b \).
The real part \( a \) is the coefficient of the real number, which is \( -4 \) in this case.
The imaginary part \( b \) is the coefficient of \( i \), which is \( -9 \) in this case.
Therefore, for the complex number \( -4 - 9i \), the real part is \( a = -4 \) and the imaginary part is \( b = -9 \).
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