Evaluate: x^2 + 13x + 15 when x = -3

x^2 + 13x + 15 when x = -3;
(-3)^2 + 13(-3) + 15
= 9 - 39 + 15
= -30 + 15
= -15

Expert answered|ihcvin|Points 60|

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Asked 12/18/2010 11:58:45 PM

Updated 12/26/2014 7:50:24 AM

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This answer has been confirmed as correct and helpful.

Edited by andrewpallarca [12/26/2014 7:50:23 AM], Confirmed by andrewpallarca [12/26/2014 7:50:24 AM]

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Working with polynomial: (8x – 5) + (7x + 4) **Weegy:**
(8x – 5) + (7x + 4)
= 8x + 7x - 5 + 4
= 15x - 1
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Working with polynomial: (3x^2 + 3x) + (4x + 4). Please show the steps on how you got your answer. Thanks!

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Updated 8/10/2014 5:55:48 PM

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(3x^2 + 3x) + (4x + 4)

= 3x^2 + 3x + 4x + 4;

= 3x^2 + 7x + 4

= 3x^2 + 3x + 4x + 4;

= 3x^2 + 7x + 4

Added 8/10/2014 5:55:48 PM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [8/10/2014 5:57:18 PM]

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