Scelta multipla
Identify the real and imaginary parts of each complex number.
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0. Review of College Algebra
Complex Numbers
Scelta multipla
Find the sum. Express your answer in standard form.
A
B
C
D
Guida verificata passo dopo passo1
First, distribute the 5 across the terms inside the first parenthesis: 5(4 + 7i) becomes 5 * 4 + 5 * 7i.
Next, distribute the 6 across the terms inside the second parenthesis: 6(3 - 2i) becomes 6 * 3 + 6 * (-2i).
Now, simplify each of these expressions: 5 * 4 = 20 and 5 * 7i = 35i; 6 * 3 = 18 and 6 * (-2i) = -12i.
Combine the real parts and the imaginary parts separately: (20 + 18) for the real parts and (35i - 12i) for the imaginary parts.
Finally, add the real parts together and the imaginary parts together to express the sum in standard form: a + bi.
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