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quynhtran2209
What is the value of the expression \(x(x – 2)^{3}\) when x = –1?

(A) -27
(B) -1
(C) 1
(D) 9
(E) 27

Source: GMAT Official Practice.

\((-1 – 2)^{3}\) = \((– 3)^{3}\) = (- 27)

\(x (- 27)\) = \((-1) (- 27)\) = 27
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quynhtran2209
What is the value of the expression \(x(x – 2)^{3}\) when x = –1?

(A) -27
(B) -1
(C) 1
(D) 9
(E) 27

Source: GMAT Official Practice.
\(x(x – 2)^{3}\)
= \((-1)(-1 – 2)^{3}\)
= -1 * -27
= 27

Answer:
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quynhtran2209
What is the value of the expression \(x(x – 2)^{3}\) when x = –1?

(A) -27
(B) -1
(C) 1
(D) 9
(E) 27

Source: GMAT Official Practice.
Solution:

The value of the expression x(x - 2)^3 when x = -1 is:

(-1)(-1 - 2)^3 = (-1)(-27) = 27

Answer: E
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­straightforward- just plug in -1 and let her rip"

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\(x(x – 2)^{3}\) = -1 * (-1-2)^3 = -1 * (-3)^3 = -1 * -27 = 27
quynhtran2209
What is the value of the expression \(x(x – 2)^{3}\) when x = –1?

(A) -27
(B) -1
(C) 1
(D) 9
(E) 27

PS13704

Source: GMAT Official Practice.
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