Square Root Method w/ Imaginary Solutions

Solve by taking square roots:

2b² - 4 = -166

• b = 9i, b = -9i

• b = 3, b = -3

• b = 9, b = -9

• b = 3i, b = -3i

Solve using square roots.

• √3

• ±√3

• -3

• ±i√3

Solve by taking the square root: -9k² = 225

• 4i

• 4, -4

• 25i, -25i

• -5i, 5i

Solve
x² + 49 = 0

• -7

• -7

• 7i

• ±7i

What are the solutions of the quadratic equation 6x^2 + 24 = 0 when using square roots with imaginary numbers?

• x = 4i

• x = 2i, x = -2i

• x = -2

• x = 2

Solve.

25x² + 18 = 2

Solve.  
x² +12 = 5

• x = ± 49
• x = ± i√7
• x = ± √7
• x = ± 3.5i

• ±√-147

• 7i√3

• ±7i√3

• -7√3