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is possible to factorise x^3 +3x+4=0

How about this question: Find the area enclosed between the curve y=x^2 and the line y=-6x+16 Is the intergral between -8 and 2 ? And the equation after integration is (-3x^2 +16x+x^3/3)

<meta http-equiv="CONTENT-TYPE" content="text/html; charset=utf-8"> <title></title> <meta name="GENERATOR" content="OpenOffice.org 3.2 (Unix)"> <style type="text/css"> <!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } --> </style> What is the property(s) of these gases that...

oh i get :)

yes that was what i meant, but who come when i but the values into it, the answer doesn't match the book :S but when i arranged the equation the other way, i get the correct answer but its negative :S

How abt this question: Find the area enclosed between the line y=2 and the curve y = x^2 +1 For working i got intergral of 2x- x^3/3 +x from 1 to -1 ... is this correct ?

oh right thanks :)

oh so its a sideways parabola ?

thank you so much, i did exactly the same working a you got up there, maybe its how i used the calculator :) thanks i appreciate it :)

the answer is 1/6 units sq

oh and ummm just one help on one more question "find area bounded by the curve y=1 and the curve y=x^2" with this i summed the equations together but i am not quite getting the answer.

nope they didn't give limits .. just the y axis .

Find the area bounded by the curve x= - y^2 -5y - 6 and the y axis

oh right thanks :) i understand this much better now :) I was wondering about this question x= - y^2 -5y - 6 , i drew this out its a sideways parabola, is the intergral thing from 6 to -1 ?

Thanks guys for your help :) i just really didn't get how the 1/3 was factored out of the thing, ... do you always have to factor out the 1/3 is it possible to do the working without factoring out the 1/3 ?

Find the area enclosed by the curve y= root 3x-5, the axis and the lines y = 2 and y =3

7. Three fuels commonly used in vehicles are petrol, LPG and ethanol. Some facts about them are given in the table. (b) Calculate the mass of 1L of each fuel. (c) Calculate the number of moles in 1L of each fuel. (d) Calculate the heat produced by the combustion of 1L of each of these fuels...

Does anyone know of related texts for 'distinctive voices' ?

Does anyone know of any good related texts to 'Into the world' ?

Hi, I was just wondering is the National Heart Foundation a health promotion initative ? and what are some other health promotion initiatives ?