TestMastered
All Topics
Numbers & Operations

Powers & Roots

幂与根

Low frequency
Exam Frequency
2
avg per test
0
Quantitative Reasoning
2
Math Achievement
What to Study
  • Positive exponents
  • Negative exponents
  • Zero exponent (x⁰ = 1, x ≠ 0)
  • Multiplication property (xᵃ × xᵇ = xᵃ⁺ᵇ)
  • Division property (xᵃ / xᵇ = xᵃ⁻ᵇ, x ≠ 0)
  • Power of powers ((xᵃ)ᵇ = xᵃᵇ)
  • Square roots
  • Radicals
Key Formulas
xᵃ × xᵇ = xᵃ⁺ᵇ
xᵃ / xᵇ = xᵃ⁻ᵇ (x ≠ 0)
(xᵃ)ᵇ = xᵃᵇ
x⁰ = 1 (x ≠ 0)
x⁻ⁿ = 1/xⁿ (x ≠ 0)