Question and answer
Given: X = r 2, Y = 2r - 9, and Z = r2 17r 30. Simplify [X Y - Z] X.
(r+2)(2r-9)-(r^(2)+17r+30)/(r+2)... For a polynomial of the form x^(2)+bx+c, find two factors of c (30) that add up to b (17). [ [ In this problem 15*2=30 and 15+2=17, so insert 15 as the right hand term of one factor and 2 as the right-hand term of the other factor. (r+2)(2r-9)-((r+15)(r+2))/(r+2)... Reduce the expression by canceling out the common factor of (r+2) from the numerator and
denominator. (r+2)(2r-9)-((r+15) (r+2) )/( (r+2) )... Reduce the expression by canceling out the common factor of (r+2) from the numerator and denominator. (r+2)(2r-9)-(r+15) Multiply each term in the first group by each term in the second group using the FOIL method. FOIL stands for First Outer Inner Last, and is a method of multiplying two binomials. First, multiply the first two terms in each binomial group. Next, multiply the outer terms in each group, followed by the inner terms. Finally, multiply the last two terms in each group. (r*2r+r*-9+2*2r+2*-9)-(r+15)... Simplify the FOIL expression by multiplying and combining all like terms. (2r^(2)-5r-18)-(r+15)... Multiply -1 by each term inside the parentheses. (2r^(2)-5r-18)+-r-15... Since -5r and -r are like terms, subtract r from -5r to get -6r. 2r^(2)-6r-18-15... Subtract 15 from -18 to get -33. 2r^(2)-6r-33 is the answer. ] ]
Expert answered|tantimanle|Points 14|
Question
Asked 192 days ago|10/9/2013 7:34:11 AM
0 Answers/Comments
Ask a question
Not a good answer? Get an answer now. (FREE)
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Home | Contact | Terms | Privacy | Social | ©2013 Purple Inc.
Ad
Popular Conversations
write 0.0053 as a percent
4/18/2014 4:31:03 PM| 7 Answers
One number is 7 more than twice another. If their difference is 22, ...
Weegy: One number is 9 more than twice another. If their difference is 22, what is the larger number? answer is 37. ...
4/18/2014 11:15:41 AM| 5 Answers
which life stage does nutritional issue might cause the most problems ...
Weegy: Malnutrition is a common problem in cancer patients that has been relief from nutrition impact symptoms and ...
4/19/2014 1:18:55 AM| 5 Answers
A letter that is mailed today will be delivered by 10:30 A.M. ...
Weegy: A letter that is mailed today will be delivered by 10:30 A.M. tomorrow. This is an C. adverb clause. User: ...
4/18/2014 5:43:32 PM| 4 Answers
genetic code
Weegy: Please ask your question about genetics. User: The Challenger was the first space shuttle.
4/18/2014 8:40:33 AM| 3 Answers
Find the excluded value of the rational expression 2x + 6 4x – 8 ...
Weegy: D. 2 User: Multiply. State the Excluded value 5/2a x 3/a^2 Weegy: B.15/2a^3 where a =0 User: Multiply. ...
4/18/2014 2:09:56 PM| 3 Answers
Nitrogen gas consists of _____. two separate nitrogen atoms a ...
Weegy: Nitrogen gas consist of diatomic nitrogen atom
4/18/2014 2:50:12 PM| 3 Answers
write 13.7 as a percent
4/18/2014 3:58:02 PM| 3 Answers
Weegy Stuff
S
L
P
C
L
P
C
Points 1529 [Total 6916]| Ratings 0| Comments 1529| Invitations 0|Offline
S
L
P
C
P
C
1
L
P
C
Points 1453 [Total 9334]| Ratings 0| Comments 1453| Invitations 0|Offline
S
1
L
1
L
P
Points 477 [Total 7154]| Ratings 1| Comments 467| Invitations 0|Offline
S
L
Points 397 [Total 2844]| Ratings 2| Comments 367| Invitations 1|Offline
S
R
Points 170 [Total 282]| Ratings 5| Comments 100| Invitations 2|Offline
S
Points 160 [Total 576]| Ratings 0| Comments 160| Invitations 0|Offline
S
1
Points 147 [Total 477]| Ratings 3| Comments 117| Invitations 0|Offline
S
Points 133 [Total 777]| Ratings 1| Comments 123| Invitations 0|Offline
S
Points 129 [Total 129]| Ratings 5| Comments 59| Invitations 2|Offline
S
L
1
1
1
Points 77 [Total 3343]| Ratings 6| Comments 17| Invitations 0|Offline