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Multiply and simplify: (3x2 – 2x – 1)(x2 + x + 5) A. 3x4 + 2x3 + 12x2 – 11x – 5 B. 3x4 + x3 + 12x2 – 10x – 5 C. 3x4 + x3 + 12x2 – 11x – 5 D. 3x4 + x3 + 14x2 – 11x – 5
(3x^2 – 2x – 1)(x^2 + x + 5) = 3x^4 - 2x^3 + 3x^3 - x^2 - 2x^2 + 15x^2 - x - 10x - 5 = 3x^4 + x^3 + 12x^2 - 11x - 5
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Asked 4/30/2012 11:58:09 AM
Updated 7/13/2014 1:57:28 PM
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(3x^2 – 2x – 1)(x^2 + x + 5)
= 3x^4 - 2x^3 + 3x^3 - x^2 - 2x^2 + 15x^2 - x - 10x - 5
= 3x^4 + x^3 + 12x^2 - 11x - 5
Added 7/13/2014 1:57:28 PM
This answer has been confirmed as correct and helpful.
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9x + 8 = 2x + 8
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Updated 6/16/2014 2:11:11 PM
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Multiply and simplify. (3x – 1)(2x + 5) A. 6x2 – 13x – 5 B. 6x2 – 17x – 5 C. 6x2 + 13x – 5 D. 6x2 + 17x – 5
Question
Not Answered
Updated 6/16/2014 2:10:48 PM
1 Answer/Comment
(3x – 1)(2x + 5)

= 6x^2 + 15x - 2x - 5

= 6x^2 + 13x - 5
Added 6/16/2014 2:10:48 PM
This answer has been confirmed as correct and helpful.
2*2
Weegy: 2^2 means 2*2 or square of 2 whiach is equal to 4. So Ans. =4 User: Is the algebraic expression a polynomial? If so, give its degree. 9x3 + 6x6 + 8 User: Perform the indicated operations and simplify. 5x – 4x[8 – 3(x – 2)] Weegy: 12x^2-51x (More)
Question
Expert Answered
Updated 7/16/2014 1:51:00 AM
2 Answers/Comments
5x – 4x[8 – 3(x – 2)]
= 5x - 4x(8 - 3x + 6)
= 5x - 4x(14 - 3x)
= 5x - 56x + 12x^2
= 12x^2 - 51x
Added 7/16/2014 1:49:53 AM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [7/16/2014 4:13:52 AM]
The algebraic expression 9x^3 + 6x^6 + 8 is a polynomial, it's degree is 6.
Added 7/16/2014 1:51:00 AM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [7/16/2014 4:14:18 AM]
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