Solutions to Equations with Squares and Cubes

The number 512 is a perfect cube because 512 = 8³.

Which number below is also a perfect cube?

• 125

• 300

• 150

• 256

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CCSS.8.EE.A.2

Solve for x.

x² = 64

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CCSS.8.EE.A.2

Find the cube root(s): ∛1

• 1

• -1

• ±1

• none

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CCSS.8.EE.A.2

x² = 25

• x = 5

• x = -5

• x = ±5

• x = 25

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CCSS.8.EE.A.2

• -45 and 45
• -5 and 5
• -225 and 225
• -15 and 15

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CCSS.8.EE.A.2

2d² = 162

• d = 9

• d ≅ ± 9

• d = ± 9

• d = ± 12.7

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CCSS.8.EE.A.2

Solve the equation for z.

• 1/4

• -1/2

• 1/2

• -1/4

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CCSS.8.EE.A.2

y² = 64

• ±8

• 8

• ±32

• 32

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CCSS.8.EE.A.2

130 = n²

• n ≅ ± 11.4

• n ≅ 11.4

• n = ± 65

• n = 65

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CCSS.8.EE.A.2

Solve each equation for x:

• 9

• 3

• 6

• 12

Tags

CCSS.8.EE.A.2