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Laws of exponentstep by step

User Agey
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There are several laws of exponents. Let's see each of them.

Product of powers with equal bases.

When we have the product of two powers with equal bases, we just have to sum their exponents.


x^3\cdot x^2=x^(3+2)=x^5

Division of powers with equal bases.

When we have the division of two powers with equal bases, we just have to subtract their exponents.


(x^3)/(x^2)=x^(3-2)=x^1

Power of a power.

When we have power inside another power, we just have to multiply the exponents.


(x^2)^3=x^(2\cdot3)=x^6

Power of a product.

The power of a product between two factors is equal to the product of their powers.


(x\cdot y)^5=x^5\cdot y^5

This means we can separate the powers.

Power of a division.

The powers of a division between two factors are equal to the division of their powers.


(\frac{x^{}}{y})^2=(x^2)/(y^2)

The fractional exponent.

All roots have an equivalent fractional exponent, as follows


\sqrt[4]{x^2}=x^{(2)/(4)}

Observe that the exponent of the power is the numerator and the exponent of the root is the denominator.

User Paul Tucker
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