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

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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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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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when x = 3,

5x + (-2x^2)

= 5(3) - 2(3^2)

= 15 - 18

= -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]

Simplify -4(x - 7) + (x + 14). **Weegy:** 18 - 2[x + (x - 5)] 18 - 2[2x - 5] 18 - 4x + 10 = -4x + 28 (More)

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

1 Answer/Comment

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

-4x + 28 + x + 14

= -3x + 42

-4x + 28 + x + 14

= -3x + 42

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

This answer has been confirmed as correct and helpful.

Find the value of 9 - [42 - (3 + 2)].
**Weegy:** 3-3 = 0 (More)

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

1 Answer/Comment

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

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

Question

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

1 Answer/Comment

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)

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

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