Problem

Solve $(-10+9 i)-4(1-2 i)$ and write the answer in standard form. (A) $-14+i$ (B) $-14+17 i$ (C) $14-17 i$ (D) $14-i$

Solution

Step 1 :Distribute the 4 in the second term to both the real and imaginary parts: \(4(1-2 i) = 4 - 8i\).

Step 2 :Subtract the real part of the second term from the real part of the first term: \(-10 - 4 = -14\).

Step 3 :Subtract the imaginary part of the second term from the imaginary part of the first term: \(9i - (-8i) = 17i\).

Step 4 :The result of the subtraction is \(-14+17i\), which is in the standard form for a complex number.

Step 5 :Final Answer: \(\boxed{-14+17 i}\)

From Solvely APP
Source: https://solvelyapp.com/problems/f6RrMIyBqZ/

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