Solve Quadratics Using Square Root Method with Imaginary Numbers

Solve the quadratic with the square root method.

x² + 36 = 0

• x = ±6

• x = 6i

• x = -6

• x = ±6i

Solve using square roots.

• √3

• ±√3

• -3

• ±i√3

Solve.   x² = √-36

• x = ± 6

• x = 6i

• x = ± 6i

• x = i√6

Solve the quadratic equation 2x^2 + 8 = 0 by using square roots with imaginary numbers.

• x = ±3i

• x = ±2i

• x = ±4i

• x = ±5i

Solve for x: 

• x = {-4, -1}

• x = {-1, -4}

• x = {2+i, 2-i}

• x = {-2+i, -2-i}

Solve over the set of complex numbers:

2x²+18=0

• 3i²

• -3i and 3i

• 9i

• 0 and 9

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

• 4i

• 4, -4

• 25i, -25i

• -5i, 5i

Solve by taking square roots:

2b² - 4 = -166

• b = 9i, b = -9i

• b = 3, b = -3

• b = 9, b = -9

• b = 3i, b = -3i