Quiz 20: Quadratics Review Part A

√24 =

• $\pm$ 4√6

• $\pm$ 2√6

• $\pm$ 6√2

• $\pm$ 2√12

√16 =

• $\pm$ 4

• $\pm$ 8

• $\pm$ 16

• $\pm$ 64

√28m⁴n³

• $\pm$ m²n√7n

• $\pm$ 7m²n√n

• $\pm$ 2m²n√7n

• $\pm$ 7m²n²√n

(5-2i) + (-7+8i)

• -2+6i
• 12+6i
• -35-16i²
• -35 -16i

Tags

CCSS.HSN.CN.A.2

Simplify:
-3i(4 + 2i)

• 6 - 12i
• 6 + 12i
• -12i - 6i²
• -12i + 6i²

Tags

CCSS.HSN.CN.A.2

(-7+6i)²

• 49+36i

• 85

• 13-84i

• 13+84i

Tags

CCSS.HSN.CN.C.8

Solve by taking the square root:

x² = 49

• -7

• 7

• 49

• ±7

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root:

4x² = 100

• ±10

• ±25

• ±5

• 5

Tags

CCSS.HSA-REI.B.4B

Solve for h.

(h - 2)² = -9

• h = -3i+2, 3i+2

• h = 5i, -5i

• h = 5

• h = -1

Solve for x.

5(x - 3)² + 1 = 81

• x = -1, 7

• x = -7, 1

• x = ± 9

• x = 3, 10

Tags

CCSS.HSA-REI.B.4B