Question and answer
Simplify the expression. 2(3y - 7) - 5y(2 - y)
Question
Asked 5/8/2015 10:21:32 AM
Updated 5/8/2015 2:09:53 PM
2 Answers/Comments
This answer has been confirmed as correct and helpful.
Edited by jeifunk [5/8/2015 2:09:51 PM], Confirmed by jeifunk [5/8/2015 2:09:53 PM]
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Original conversation
User: Simplify the expression. 2(3y - 7) - 5y(2 - y)

Weegy: 2(3y - 7) - 5y(2 - y)

= 6y - 14 - 10y + 5y^2

= 5y^2 - 4y - 14

User: Find the product. (n + 8)(n - 2)

User: Use the definitions and theorems of this section to evaluate and simplify the following expression. Be sure to express answers with positive exponents. (b 4) 2

Question
Asked 5/8/2015 10:21:32 AM
Updated 5/8/2015 2:09:53 PM
2 Answers/Comments
This answer has been confirmed as correct and helpful.
Edited by jeifunk [5/8/2015 2:09:51 PM], Confirmed by jeifunk [5/8/2015 2:09:53 PM]
New answers
Rating
3
(n + 8)(n - 2) = n^2 - 2n + 8n - 16 = n^2 + 6n - 16
Added 5/8/2015 2:08:36 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [5/8/2015 2:09:42 PM]
3
(b^4)^2 = b^8
Added 5/8/2015 2:09:18 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [5/8/2015 2:21:16 PM]
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Evaluate the following expression. (-6)^-2
Question
Not Answered
Updated 5/4/2015 12:54:35 PM
1 Answer/Comment
(-6)^-2 = 1/(-6)^2 = 1/36
Added 5/4/2015 12:54:35 PM
This answer has been confirmed as correct and helpful.
Confirmed by sujaysen [5/6/2015 2:24:05 PM]
(2n^3 + 4n^2 - 7) + (-n^3 + 8n - 9)
Weegy: (2n^3 + 4n^2 - 7) + (-n^3 + 8n - 9) = 2n^3 + 4n^2 - 7 - n^3 + 8n - 9 = n^3 + 4n^2 + 8n - 16 (final answer) (More)
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Expert Answered
Updated 5/8/2015 2:31:50 PM
0 Answers/Comments
Find the quotient. (42j^4k^2) ÷ (-3j^3k)
Weegy: (42j^4k^2) ÷ (-3j^3k) = -14jk User: Evaluate x^0 + y^0 for x = 3 and y = 2. (More)
Question
Updated 5/8/2015 11:50:42 AM
1 Answer/Comment
x^0 + y^0 for x = 3 and y = 2;
3^0 + 2^0
= 1 + 1
= 2
Added 5/8/2015 11:50:42 AM
This answer has been confirmed as correct and helpful.
Find the product mentally. (r - s)^2
Weegy: (r - s)^2 =r^2 - rs - rs + s^2 =r^2 - 2rs + s^2 User: Find the product mentally. (2m - 9)^2 User: Find the product mentally. (ab + 3)^2 Weegy: (ab + 3)^2 =(ab + 3)(ab + 3) =(ab)(ab) + (ab)(3) + (3)(ab) + (3)(3) =a^2b^2 + 3ab + 3ab + 9 =a^2b^2 + 6ab + 9 User: Find the product. (n + 7)^2 (More)
Question
Updated 5/5/2015 1:39:25 PM
3 Answers/Comments
(2m - 9)^2

= (2m - 9)(2m - 9)

= 4m^2 - 18m - 18m + 81;

= 4m^2 - 36m + 81
Added 5/5/2015 12:59:49 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [5/5/2015 1:41:00 PM]
(n + 7)^2

= (n + 7)(n + 7)

= n^2 + 7n + 7n + 49;

= n^2 + 14n + 49
Added 5/5/2015 1:02:04 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [5/5/2015 1:41:18 PM]
Find the sum of the given polynomials. 2mn + 4n 2 and 5m 2 - 7mn
Weegy: 2mn + 4n2 + 5m2 - 7mn = 5m2- 5mn+ 4n2 User: Reduce -8 + b 2 by 5 + b 2. User: Take -4 + 3a 2 from 7a - a 2. Weegy: (7a - a^2) - (-4 + 3a^2) = -4a^2 + 7a + 4 User: Find a - 2b + 3c diminished by a - 2b - 3c + d. Weegy: (a - 2b + 3c)-(a - 2b - 3c + d) = 6c - d User: Find 2p^2 + 3p - 4 less - 2p^2 - 3p + 4. User: After arranging the terms in descending powers of a variable, select the opposite of the polynomial. 9 - 12n 2 + 4n 3 - 7n Weegy: 9 - 12n^2 + 4n^3 - 7n = (n+1) (4 n^2-16 n+9) User: Simplify 3j - {2k - [5h - (3j + k)]}. Weegy: 3j - {2k - [5h - (3j + k)]} = 5h - 3k User: Find x - y less than 0. User: Simplify 2m - [n - (m - 2n)]. (More)
Question
Not Answered
Updated 6/6/2015 12:33:30 PM
3 Answers/Comments
-8 + b - (5 + b^2)
= -8 + b - 5 - b^2
= -13 + b - b^2
Added 5/4/2015 7:24:26 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [6/6/2015 12:29:48 PM]
2p^2 + 3p - 4 - (-2p^2 - 3p + 4)
= 2p^2 + 2p^2 + 3p + 3p - 4 - 4
= 4p^2 + 6p - 8
Added 5/4/2015 7:26:36 PM
This answer has been confirmed as correct and helpful.
Rated good by jeifunk, Confirmed by jeifunk [6/6/2015 12:34:39 PM], Rated bad by jeifunk
2m - [n - (m - 2n)]
= 2m - [n - m + 2n]
= 2m - 3n + m
= 3m - 3n
Added 5/4/2015 7:28:27 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [6/6/2015 12:34:48 PM]
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