(2n^3 + 4n^2 - 7) + (-n^3 + 8n - 9)
(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)
Question
Updated 5/8/2015 2:31:50 PM
Edited by Andrew. [5/8/2015 10:23:14 AM], Confirmed by Andrew. [5/8/2015 2:31:50 PM]
s
Rating

Questions asked by the same visitor
Evaluate the following expression. (-6)^-2
Question
Updated 5/4/2015 12:54:35 PM
(-6)^-2 = 1/(-6)^2 = 1/36
Confirmed by sujaysen [5/6/2015 2:24:05 PM]
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
x^0 + y^0 for x = 3 and y = 2;
3^0 + 2^0
= 1 + 1
= 2
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 (More)
Question
Updated 5/8/2015 2:09:53 PM
(n + 8)(n - 2) = n^2 - 2n + 8n - 16 = n^2 + 6n - 16
Confirmed by jeifunk [5/8/2015 2:09:42 PM]
(b^4)^2 = b^8
Confirmed by jeifunk [5/8/2015 2:21:16 PM]
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
(2m - 9)^2

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

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

= 4m^2 - 36m + 81
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
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
Updated 6/6/2015 12:33:30 PM
-8 + b - (5 + b^2)
= -8 + b - 5 - b^2
= -13 + b - b^2
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
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
Confirmed by jeifunk [6/6/2015 12:34:48 PM]
31,989,235
GET
GET THE APP.
weegy* *
Get answers from Weegy and a team of really smart live experts.
Popular Conversations
S
L
Points 539 [Total 3536] Ratings 1 Comments 529 Invitations 0 Offline
S
L
P
L
P
Points 435 [Total 6458] Ratings 1 Comments 425 Invitations 0 Offline
S
L
P
R
P
R
L
P
P
C
R
P
R
L
P
R
Points 373 [Total 12464] Ratings 1 Comments 283 Invitations 8 Online
S
L
P
1
Points 338 [Total 3194] Ratings 1 Comments 328 Invitations 0 Offline
S
L
Points 302 [Total 1795] Ratings 1 Comments 292 Invitations 0 Online
S
L
Points 212 [Total 4596] Ratings 1 Comments 202 Invitations 0 Offline
S
L
1
Points 132 [Total 3443] Ratings 2 Comments 112 Invitations 0 Offline
S
L
Points 93 [Total 244] Ratings 2 Comments 73 Invitations 0 Offline
S
L
Points 71 [Total 230] Ratings 0 Comments 71 Invitations 0 Offline
S
L
L
Points 42 [Total 5330] Ratings 1 Comments 32 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.