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Mathematics

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Here are the Laws of Exponents explained in English:

The Laws of Exponents are a set of rules that govern how to handle exponents in algebraic expressions. These rules simplify calculations and help in solving equations.

Here are some fundamental rules:

  • Product Rule: When multiplying powers with the same base, add the exponents.

    xm⋅xn=xm+nx^m \cdot x^n = x^{m+n}

    Example: 23⋅24=23+4=272^3 \cdot 2^4 = 2^{3+4} = 2^7

  • Quotient Rule: When dividing powers with the same base, subtract the exponents.

    xmxn=xm−n\frac{x^m}{x^n} = x^{m-n}

    Example: 5652=56−2=54\frac{5^6}{5^2} = 5^{6-2} = 5^4

  • Power of a Power Rule: When raising a power to another power, multiply the exponents.

    (xm)n=xmn(x^m)^n = x^{mn}

    Example: (32)3=32⋅3=36(3^2)^3 = 3^{2 \cdot 3} = 3^6

  • Power of a Product Rule: When raising a product to a power, raise each factor to that power.

    (xy)n=xnyn(xy)^n = x^n y^n

    Example: (2⋅5)3=23⋅53(2 \cdot 5)^3 = 2^3 \cdot 5^3

  • Power of a Quotient Rule: When raising a quotient to a power, raise both the numerator and the denominator to that power.

    (xy)n=xnyn\left(\frac{x}{y}\right)^n = \frac{x^n}{y^n}

    Example: (47)2=4272\left(\frac{4}{7}\right)^2 = \frac{4^2}{7^2}

  • Zero Exponent Rule: Any non-zero number raised to the power of zero is 1.

    x0=1(where x≠0)x^0 = 1 \quad (\text{where } x \neq 0)

    Example: 100=110^0 = 1

  • Negative Exponent Rule: A negative exponent means the reciprocal of the base raised to the positive exponent.

    x−n=1xnx^{-n} = \frac{1}{x^n}

    Example: 4−2=142=1164^{-2} = \frac{1}{4^2} = \frac{1}{16}

  • Fractional Exponent Rule: Fractional exponents represent roots.

    x1/n=xnx^{1/n} = \sqrt[n]{x} xm/n=xmn=(xn)mx^{m/n} = \sqrt[n]{x^m} = (\sqrt[n]{x})^m

    Example: 91/2=9=39^{1/2} = \sqrt{9} = 3 Example: 82/3=823=643=48^{2/3} = \sqrt[3]{8^2} = \sqrt[3]{64} = 4

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