8.EE.A.2 math practice. Learn by doing.

8.EE.A.2 practice covers use square root and cube root symbols to represent solutions to equations of the form x² = p and x³ = p, where p is a positive rational number. Work through 8 free questions with answers and explanations, then continue in the related math games.

Grade 82 mapped skills
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8 free questions · 0/0 correct

Practice playeasy

Solve for all values of x.x\textsf{.}

x2=81x^{2} = 81

9×9=819 \times 9 = 81 and (−9)×(−9)=81,(-9) \times (-9) = 81\textsf{,} so x=±9.x = \pm 9\textsf{.}

Practice playeasy

Evaluate 1253.\sqrt[\text{\scriptsize 3}]{125}\textsf{.}

5×5×5=125,5 \times 5 \times 5 = 125\textsf{,} so 1253=5.\sqrt[\text{\scriptsize 3}]{125} = 5\textsf{.}

Practice playeasy

Solve for all values of x.x\textsf{.}

x2=64x^{2} = 64

8×8=648 \times 8 = 64 and (−8)×(−8)=64,(-8) \times (-8) = 64\textsf{,} so x=±8.x = \pm 8\textsf{.}

Practice playeasy

What is 273\sqrt[3]{27}?

3×3×3=273 \times 3 \times 3 = 27, so 273=3\sqrt[3]{27} = 3.

Practice playeasy

Solve for all values of x.x\textsf{.}

x3=−64x^{3} = -64

(−4)×(−4)×(−4)=−64,(-4) \times (-4) \times (-4) = -64\textsf{,} so x=−4.x = -4\textsf{.}

Practice playeasy

If x2=169x^2 = 169 and x>0x > 0, what is xx?

Take the positive square root: x=169=13x = \sqrt{169} = 13 because 13×13=16913 \times 13 = 169.

Practice playeasy

Solve for all values of x.x\textsf{.}

x2=196x^{2} = 196

14×14=19614 \times 14 = 196 and (−14)×(−14)=196,(-14) \times (-14) = 196\textsf{,} so x=±14.x = \pm 14\textsf{.}

Practice playeasy

What is 144\sqrt{144}?

12×12=14412 \times 12 = 144, so 144=12\sqrt{144} = 12.

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Practice 8.EE.A.2 inside a game.

The placement test chooses the right difficulty while every match keeps the standard in play.