4(-2)=- 8
When you add numbers of the same value, you can take that number and multiply it by how ever many times the number is written in the expression. -2 shows up 4 times with the same function being done to it each time. Multiply -2 by 4. A negative times a positive leaves you with a negative product. If 2 times 4 is 8, -2 times 4 is -8.
Exponents can be expressed in terms of quotient or fraction.
For example: x^6 can be expressed as x^8 / x^2 = x^8-2 = x^6.
From the question, 5^8 can be expressed as
5^10/5^2 = 5^8
(5^2)(5^8) / (5^2) = 5^8
4000 that's a weird one
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Answer:
1.62533254
Step-by-step explanation: