Complex Numbers and Equations

Which are the solution(s) to the equation: x² + 6x - 9 = 4x + 6?

• x = {15, -1}

• x = {1, -15}

• x = {3, -5}

• x = {5, -3}

Solve by any method: 1. 4x² - 37 = 43

• x = 5

• x = -5

• x = 4

• x = -4

Solve by any method: 2. x² - 8x = -15

• x = 3 or x = 5

• x = -3 or x = 5

• x = 3 or x = -5

• x = -3 or x = -5

Solve by any method: 3. x² + 10x + 34 = 0

• x = -5 + i√19/3, x = -5 - i√19/3

• x = -5 + i√19, x = -5 - i√19

• x = -5 + 2i√19/3, x = -5 - 2i√19/3

• x = -5 + 2i√19, x = -5 - 2i√19

Solve by any method: 4. x² - 2x + 5 = 0

• x = 1 + 2i, x = 1 - 2i

• x = 2 + 3i, x = 2 - 3i

• x = 3 + 4i, x = 3 - 4i

• x = 4 + 5i, x = 4 - 5i

Solve by any method: 6. x² - 2x + 2 = 0

• x = 1 + i

• x = 1 - i

• x = 1 ± i

• x = 1

• 11 - 8i

• 7 - 2i

• 11 - 2i

• 7 - 8i

Calculate the difference: ((7 - 4i) - (8 - 3i)).

• -1 - i

• 1 + i

• -15 + 7i

• 15 - 7i

• The product is 4 + 53i.

• The product is 4 - 53i.

• The product is 68 - 53i.

• The product is 68 + 53i.