# Exponents \\( x^n = x_1 \times x_2 \times\ \cdot\cdot\cdot\ \times x_n \\) ## Examples * \\(2^5 = 2 \times 2 \times 2 \times 2 \times 2 = 32 \\) * \\(5^7 = 5 \times 5 \times 5 \times 5 \times 5 \times 5 \times 5 = 78125 \\) # Exponent Operations ## Multiplication If an exponented number is multiplied by another exponented number, the exponents would be summed together (instead of being multiplied) \\( a^x \times b^y = (a \times b)^{x + y} \\) * \\( 10^4 \times 2^2 = (10 \times 2)^{4 + 2} = 20^6 \\) ## Division If an exponented number is multiplied by another exponented number, the exponents would be subtracted together (instead of being divided) \\( a^x \div b^y = (a \div b)^{x - y} \\) * \\( 10^3 \div 2^4 = (10 \div 2)^{(4 - 2)} = 5^2 = 25 \\) ## Exponent If an exponented number is exponented, multiply the exponents together. \\( (a^x)^y = a^{x \times y} \\) * \\( (2^2)^3 = 2^{2 \times 3} = 2^6 = 64 \\) # Special Exponents Some exponents feel better than the other, and Mathemathics agrees with them. ## Zero Exponent If a number is raised to the power of **zero**, the result is **one**. \\( a^0 = 1 \\) * \\( 5^0 = 1 \\) * \\( 69.420^0 = 1 \\) ## Negative Exponent If a number is raised to a negative power, also called as an inverse, it would be equal to... \\( a^{-b} = \dfrac{1}{a^b} \\) ## Fractional Exponent # Examples ## Exponential Equation