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Q: Multiply: (x + 3)(x2 + 5x – 4)
A: (x + 3)(x^2 + 5x – 4) = x^3 + 5x^2 - 4x + 3x^2 + 15x - 12 = x^3 + 8x^2 + 11x - 12
Question
Updated 54 days ago|4/27/2018 12:29:48 AM
Edited by Masamune [4/27/2018 12:29:46 AM]
Rating
3
(x + 3)(x^2 + 5x – 4)
= x^3 + 5x^2 - 4x + 3x^2 + 15x - 12
= x^3 + 8x^2 + 11x - 12
Added 54 days ago|4/27/2018 12:29:48 AM

Questions asked by the same visitor
Reduce to simplest terms: 30x4y2 18xy3 please show work
Weegy: The simplest form of 3 8/10 is ; convert this mixed fraction to improper fraction ; 38/10 ; factor both numerator and denominator; 2(19) / 2(5) ; by elimination ; 19/5 ; therefore the lowest simplest form is 3 4/5. User: Translate into a matimatical sentence: ‘ five less than twice a number’ Weegy: Five less than twice a number is 2n - 5. User: The width of a rectangle is x inches. The length of that rectangle is 4 inches less than three times the width. If the perimeter is 40 inches, what is the length and width of this rectangle? Show all of the work using algebra. Weegy: P=2L + 2W 40=2(8) + 2(12 the L=16 and the W= 24 hope it will help you User: Find three consecutive even numbers whose sum is 42. Show all your work using algebra. User: True or false 5x2 =(5x)2 Weegy: 8x (More)
Question
Updated 4/1/2014 9:28:38 PM
5x^2 =(5x)^2 This is FALSE.
(5x)^2 = 25x^2
Confirmed by jeifunk [4/1/2014 9:28:45 PM]
Factor: x2 + 3x + 7x + 21 show work please
Question
Updated 7/28/2014 8:10:05 PM
x^2 + 3x + 7x + 21 = x^2 + 10x + 21 = (x + 3)(x + 7)
Confirmed by andrewpallarca [7/29/2014 3:02:41 AM]
Factor: x2 + 3x + 7x + 21 User: Factor: x2 – 1 User: Factor: 4x2 – 81y2
Weegy: 4x2 – 81y2 = (2x - 9y)(2x + 9y) User: Factor: x2 – 11x + 18 Weegy: x2 – 11x + 18 = (x-9)(x-2) (More)
Question
Updated 10/21/2014 11:04:07 AM
farrukh-expert, please carefully check conversation with multiple questions. Sometimes the questions are just the same. Moderators will edit out unnecessary notes and repeated question to make the conversation clear.
Deleted by jeifunk [10/21/2014 10:53:32 AM], Undeleted by jeifunk [10/21/2014 10:55:41 AM]
the factors are (x + 3) (x + 7) not (x - 3) (x - 7)
because it will make it as x^2 - 7x - 3x + 21 which will become x^2 - 10x + 21 (see its minus not plus) whole equation goes wrong if its mistakenly involve minus instead of plus
thanks jeifunk for understanding this thing. i was continuously pointing out thing but was unable to make you understand.
I am referring to the first question. You answer is right. My apologies.
User: Factor: x2 + 3x + 7x + 21
Weegy: X2-10x+21 = (x-3)(x-7)

The answer should be positive : X2 + 10x + 21 = (x + 3)(x + 7)
its ok no problem. we are humans and mistakes mostly happens by humans.
Solve by using PEMDAS: 6*3+10/2
Question
Updated 6/2/2014 11:48:43 AM
6*3+10/2;

18 + 5 = 23
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