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Daniel Math Academy · Grade 8 Math

Solve Equations with Square & Cube Roots

Skill C.2 · Square roots & cube roots · ★★☆ Medium · Quarter 1

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Solve. Give every solution.

1. 1
   $x^3=-\frac{1}{64}$ 
2. 2
   $x^3=\frac{27}{8}$ 
3. 3
   $x^2=\frac{25}{144}$ 
4. 4
   $x^3=-343$ 
5. 5
   $x^3=\frac{27}{125}$ 
6. 6
   $x^3=\frac{1}{125}$ 
7. 7
   $x^2=0.09$ 
8. 8
   $x^3=-1,000$ 
9. 9
   $x^3=-64$ 
10. 10
    $x^3=512$ 
11. 11
    $x^3=729$ 
12. 12
    $x^2=0.01$ 

Daniel Math Academy · Grade 8 Math

Answer Key

C.2 Solve Equations with Square & Cube Roots · ★★☆ Medium

1. 1$x=-\frac{1}{4}$
2. 2$x=\frac{3}{2}$
3. 3$x=\pm \frac{5}{12}$
4. 4$x=-7$
5. 5$x=\frac{3}{5}$
6. 6$x=\frac{1}{5}$
7. 7$x=\pm 0.3$
8. 8$x=-10$
9. 9$x=-4$
10. 10$x=8$
11. 11$x=9$
12. 12$x=\pm 0.1$