What are negative indices?
They are numbers or terms with a negative index which means they can be written as a reciprocal of that number.
How do we get negative indices?
Negative indices occur when multiplying or dividing two terms where the the result of adding or subtracting the powers gives a negative value.
a3 x a-5 = a3 + - 5 = a-2 = 1/a2
p1 ÷ p2 = p1 - 2 = p-1 = 1/p
Does that make sense?
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