Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.(x-7)-3

A. -x10
B.
C.
D. x21

Answer: D

Mathematics

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A. x = 7.5 B. x = 2 C. x = 3 D. x = 7

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Find the LCM of the given polynomials.x2 + 6x + 8, -3x - 12

A. -3(x + 2)(x - 4) B. -3(x - 2)(x + 4) C. -3(x + 2)(x + 4) D. -3(x - 2)(x - 4)

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