5.1.5 Complex Numbers and Roots - Practice
2. Solve the equation. 3 x 2 + 240 = 0
1. Express − 54 in terms of i
4. Solve the equation. x 2 + 2 x + 4 = 0
3. Identify the values of x and y that make the equation 2 x + 5 i = 16 + (2 y ) i true.
5. Solve the equation. x 2 − 14 x + 58 = 0
6. Identify the number’s complex conjugate. + i 13 9
243
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