Zero and Negative Integral

• Zero exponent


  a^0 = 1, for any number a except 0
• Negative exponent

  a^(-n) = 1 / a^n, where a ≠ 0 and n is a counting number
• Simplifying expressions with zero and negative exponents

  1. Copy the base

  2. Add/subtract the exponents

  3. Take the reciprocal if the exponent is negative
• When simplifying expressions with zero and negative exponents, the final answer should have positive exponents