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(x^(3)+9x^(2))/(x^(3))
Which expression is equivalent to the given expression for all 
x > 1 ?
Choose 1 answer:
(A) 
9x^(2)
(B) 
1+9x^(2)
(C) 
(x+9)/(x)
(D) 
(1+9x)/(x)

x3+9x2x3 \frac{x^{3}+9 x^{2}}{x^{3}} \newlineWhich expression is equivalent to the given expression for all x>1 ?\newlineChoose 11 answer:\newline(A) 9x2 9 x^{2} \newline(B) 1+9x2 1+9 x^{2} \newline(C) x+9x \frac{x+9}{x} \newline(D) 1+9xx \frac{1+9 x}{x}

Full solution

Q. x3+9x2x3 \frac{x^{3}+9 x^{2}}{x^{3}} \newlineWhich expression is equivalent to the given expression for all x>1 x>1 ?\newlineChoose 11 answer:\newline(A) 9x2 9 x^{2} \newline(B) 1+9x2 1+9 x^{2} \newline(C) x+9x \frac{x+9}{x} \newline(D) 1+9xx \frac{1+9 x}{x}
  1. Simplify Expression: Simplify the given expression by dividing each term in the numerator by the term in the denominator.\newlineThe expression is (x3+9x2)/(x3)(x^{3}+9x^{2})/(x^{3}). We can divide each term in the numerator by x3x^{3} separately.
  2. Divide Terms: Divide x3x^{3} by x3x^{3} and 9x29x^{2} by x3x^{3}.
    x3/x3=1x^{3}/x^{3} = 1 (since any non-zero number divided by itself is 11)
    9x2/x3=9/x9x^{2}/x^{3} = 9/x (since when dividing powers with the same base, we subtract the exponents: 23=12 - 3 = -1)
  3. Combine Results: Combine the results from Step 22.\newlineThe simplified expression is 1+9x.1 + \frac{9}{x}.
  4. Match Answer Choices: Match the simplified expression with the given answer choices.\newlineThe simplified expression 1+9x1 + \frac{9}{x} corresponds to answer choice (D) (1+9x)/(x)\left(1+9x\right)/\left(x\right).

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