Quadratic Equations Square Root Method

Solve the following quadratic equation:

(x-3)² = -81

• x = ±3 + 9i

• x = -3 ± 9i

• x = -3 + 9i

• x = 3 ± 9i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve the following quadratic equation:

-6x² - 5 = 13

• x = ±√3 ⋅ i

• x = ±√-3 ⋅ i

• ±3i

• ±√(3i)

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve the following quadratic equation: (x+6)² = -21

• x = -6 ± √21

• x = -6 ± 7i

• x = -6 ± 21

• x = -6 ± √21 ⋅ i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve the following quadratic equation:

x² = -27

• x = ±3√9 ⋅ i

• x = ±9i

• x = ±3√3 ⋅ i

• x = ±3 ⋅ √3

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve the following quadratic equation: (x-4)² = -64

• x = 4 ± 8i

• x = -4 ± 8i

• x = 4 ± 64i

• x = -4 ± 64i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve the following quadratic equation:

2x² + 3 = -45

• x = ±6i

• x = ±2√6 ⋅ i

• x = ±3i

• x = ±2√-6 ⋅ i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve the following quadratic equation:

(x+5)² = -100

• x = -5 ± 10i

• x = 5 ± 10i

• x = -5 ± 100i

• x = 5 ± 100i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve the following quadratic equation: 5x² + 7 = 47

• x = ±2√2

• x = ±3i

• x = ±√2 ⋅ i

• x = ±5i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Tags

CCSS.HSA-REI.B.4B

Tags

CCSS.HSA-REI.B.4B