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1 vote
X is -4

f(x)= 5x^8-3x


The ^8 is the exponent for 5x!!!

1 Answer

2 votes

Answer:

327692

Explanation:


65536 = (-4)^(8) \\ \\ 65536 * 5 = 327680 \\ \\ 327680 - 3(-4) = 327680 + 12 = 327692

According to the Order of Operations [GEMS(A)\BOMDAS\PEMDAS etc.], in this case, you evaluate the exponent BEFORE multiplying. This is a common mistake people make.

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