What is the rule for subtraction with exponents?

Answer 1

As explained

Adding and Subtracting Quantities with Exponents. We cannot simplify by grouping two terms together unless they have the same base and the same exponent.

For example, we cannot combine terms in expressions such as #5^2 +12^2# or #5^3 +5^4#.

We can, however, simplify

#4^5 +4^5# as #2*(4^5) = 2 * (2^5)^2 = 2^1 * 2^10 = 2^11#
#2^2 +2^2 = 2* 2^2 = 2^1 * 2^2 = 2^3#
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Answer 2

When subtracting expressions with exponents of the same base, you subtract the exponents while keeping the base unchanged. For example, ( a^m - a^n = a^{m-n} ), where ( a ) is the base and ( m ) and ( n ) are the exponents.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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