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# If x = -3, what is the value of -3(x^2) ?

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Joined: 02 Sep 2009
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If x = -3, what is the value of -3(x^2) ?  [#permalink]

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16 Sep 2018, 22:18
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Difficulty:

5% (low)

Question Stats:

97% (00:14) correct 3% (00:09) wrong based on 46 sessions

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If x = -3, what is the value of $$-3(x^2)$$ ?

A. -27

B. -18

C. 18

D. 27

E. 81

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Re: If x = -3, what is the value of -3(x^2) ?  [#permalink]

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16 Sep 2018, 22:21
Substituting the value of x in the given equation.

$$x^2$$ = $$-3^2$$ = 9.

-3*9 = -27

A is the answer.
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If x = -3, what is the value of -3(x^2) ?  [#permalink]

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16 Sep 2018, 22:23
Bunuel wrote:
If x = -3, what is the value of $$-3(x^2)$$ ?

A. -27

B. -18

C. 18

D. 27

E. 81

(-3)*(-3)^2
= (-3)*9
= -27

Correct Answer - A
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Re: If x = -3, what is the value of -3(x^2) ?  [#permalink]

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16 Sep 2018, 22:26
If x = -3, what is the value of −3(x2)−3(x2) ?

A. -27

B. -18

C. 18

D. 27

E. 81

x=-3; -3(-3)2
=> -27 , A
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Re: If x = -3, what is the value of -3(x^2) ?  [#permalink]

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16 Sep 2018, 23:15
If x = -3, what is the value of −3(x2)

Substitute -3 in the place of x

=-3(-3^2)
=-3(9)
=-27

Re: If x = -3, what is the value of -3(x^2) ?   [#permalink] 16 Sep 2018, 23:15
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# If x = -3, what is the value of -3(x^2) ?

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