Evaluate 5x + (-2x 2) for x = 3.

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Question

Asked 5/17/2014 10:57:56 AM

Updated 5/20/2014 10:13:43 AM

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Flagged by yeswey [5/19/2014 9:18:17 PM], Unflagged by andrewpallarca [5/20/2014 10:13:39 AM], Flagged by andrewpallarca [5/20/2014 10:13:43 AM]

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User: Evaluate 5x + (-2x 2) for x = 3.

Weegy: 6(-2x )(5x ) = -60 x^5
Giana|Points 1081|

User: Solve.

Weegy: Please complete your question.
Greetings|Points 2420|

Question

Asked 5/17/2014 10:57:56 AM

Updated 5/20/2014 10:13:43 AM

1 Answer/Comment

This conversation has been flagged as incorrect.

Flagged by yeswey [5/19/2014 9:18:17 PM], Unflagged by andrewpallarca [5/20/2014 10:13:39 AM], Flagged by andrewpallarca [5/20/2014 10:13:43 AM]

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yeswey

when x = 3,
5x + (-2x^2)
= 5(3) - 2(3^2)
= 15 - 18
= -3

Added 5/19/2014 9:19:06 PM

This answer has been confirmed as correct and helpful.

Confirmed by jeifunk [5/19/2014 9:32:43 PM]

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Simplify -4(x - 7) + (x + 14).

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Updated 5/17/2014 12:38:36 PM

1 Answer/Comment

andrewpallarca

-4(x - 7) + (x + 14);

-4x + 28 + x + 14

= -3x + 42

Added 5/17/2014 12:38:35 PM

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Find the value of 9 - [42 - (3 + 2)].

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Updated 5/17/2014 1:36:03 PM

1 Answer/Comment

jerry06

9 - [42 - (3 + 2)]

= 9 - (42 - 5)

= 9 - 37

= -28

Added 5/17/2014 1:36:01 PM

This answer has been confirmed as correct and helpful.

Confirmed by alfred123 [5/17/2014 1:38:39 PM]

Perform the indicated operation. (16m 2 + 40m + 25) ÷ (4m + 5) = _____

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Not Answered

Updated 5/24/2014 10:26:04 AM

1 Answer/Comment

yeswey

(16m^2 + 40m + 25) ÷ (4m + 5)
= (4m + 5)^2/(4m + 5)
= 4m + 5

Added 5/24/2014 10:26:04 AM

This answer has been confirmed as correct and helpful.

Confirmed by yumdrea [5/24/2014 10:46:50 AM]

Given the system of equations, what is the solution? 2x + y = -1 x - y = -5

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Question

Updated 5/19/2014 11:18:39 PM

1 Answer/Comment

yeswey

2x + y = -1
x - y = -5
adding up equations the result is:
3x = -6
x = -2,
2(-2) + y = -1
y = -1 + 4 = 3
The solution for the system 2x + y = -1 x - y = -5 is (-2, 3)

Added 5/19/2014 11:18:39 PM

This answer has been confirmed as correct and helpful.

x + y = 4 x - 2y = -5 If the first equation is multiplied by 2 and then the equations are added, the result is _____.

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Updated 7/7/2014 3:19:35 AM

1 Answer/Comment

yeswey

x + y = 4, x - 2y = -5 If the first equation is multiplied by 2 and then the equations are added, the result is 3x = 3.

Added 7/7/2014 3:19:35 AM

This answer has been confirmed as correct and helpful.