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Exponent Laws Mastery

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Exponent Laws Mastery

Use the index-law guide to solve each challenge. Assume any variable in a denominator is non-zero. Give final answers with positive indices where possible.

Multiply same base: aᵐ × aⁿ = aᵐ⁺ⁿ

Divide same base: aᵐ ÷ aⁿ = aᵐ⁻ⁿ

Power of a power: (aᵐ)ⁿ = aᵐⁿ

Zero index: a⁰ = 1 (a ≠ 0)

Negative index: a⁻ⁿ = 1/aⁿ (a ≠ 0)

Power of a product: (ab)ⁿ = aⁿbⁿ

Stage 1: Number codes

Warm up by simplifying and evaluating. Keep fractions exact.

1.Write each answer as a number: (a) 2⁵ ÷ 2² (b) 5⁰ (c) 3⁻².
2.Which expression is equal to 1/16? Choose one: A. 2⁴ B. 4⁻¹ C. 16² D. 2⁻⁴.
  • A. 2⁴
  • B. 4⁻¹
  • C. 16²
  • D. 2⁻⁴
3.Kai says 10⁻² = −100 because a negative index makes the answer negative. Is Kai correct? Give the correct value and one sentence explaining the error.

Stage 2: Algebra lock

Simplify each expression. Assume the variables are non-zero when they appear in denominators.

4.Simplify x⁷ × x⁻³, giving your answer with a positive index.
5.Simplify p³ ÷ p⁶, giving your answer with a positive index.
6.Expand and simplify (3a²)³.
7.Decide whether each statement is true or false. If false, write a correct version. (a) y⁴ × y² = y⁸ (b) (m³)² = m⁶ (c) z⁰ = 0.
8.Match the expressions in the left column to the simplified forms on the right.
  • (b²)⁴
  • c⁵ ÷ c⁷
  • (2d)²
  • 1/c²
  • 4d²
  • b⁸

Stage 3: Final unlock

Use more than one index law where needed. Show the changes to the indices.

9.Simplify completely and write with positive indices: (2a³b)² ÷ (a²b⁻¹).
10.Use the quotient law to explain why r⁰ = 1 for r ≠ 0. Include a numerical example.

2 printable pages

  • Exponent laws guide and number-power warm-up challenges.

    Page 1

  • Algebraic index-law puzzles, matching, and a final simplification challenge.

    Page 2

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