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Mathematics 8 Online
OpenStudy (anonymous):

Can someone help me to solve the following inequality?

OpenStudy (anonymous):

OpenStudy (anonymous):

Can you show the work, please?

OpenStudy (amistre64):

clear the fraction by multiplying both sides by the denom

OpenStudy (anonymous):

yeah

OpenStudy (amistre64):

then migrate it all to one side of the sign

OpenStudy (amistre64):

and solve as a quadratic

OpenStudy (amistre64):

or, another way to look at it; is (x+1)/(x+1) = 1, so use that and ignore the denoms

OpenStudy (anonymous):

is this correct? x^2 + 3x >= 0

OpenStudy (amistre64):

x^2 +4x + 1 >/ x+1 x^2 +3x >/ 0, looks good to me; factor and dbl chk

OpenStudy (anonymous):

then I should solve it as a normal inequality?

OpenStudy (amistre64):

there should be someway to teach or get across to the masses that =,>, and < have all the same properties and are the same type of problems

OpenStudy (amistre64):

there is nothing magical about any of the symbols of equaltiy relations

OpenStudy (anonymous):

Im gonna edit the way I think, it is the correct. Then you can find the mistakes

OpenStudy (amistre64):

ok :)

OpenStudy (anonymous):

thanks ;)

OpenStudy (anonymous):

this is the first part

OpenStudy (amistre64):

good so far :)

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

OpenStudy (amistre64):

those numbers are good for reference, but lets use them in a reasonable fashion now :)

OpenStudy (amistre64):

|dw:1314273755356:dw|

OpenStudy (anonymous):

can you follow this link: http://www.twiddla.com/602089 Im making a draw

OpenStudy (amistre64):

so our solutions is: (-inf,-3] U [0,inf)

OpenStudy (anonymous):

OpenStudy (radar):

Very Informative, thanks emunrradtvamg and amistre64

OpenStudy (amistre64):

youre welcome :)

OpenStudy (anonymous):

Sorry my internet connection failed. So according to what we know the answer is the above mencioned, but according to my book the answer is:

OpenStudy (anonymous):

-3 <= x < -1 and x>=0

OpenStudy (anonymous):

there is where my question starts

OpenStudy (anonymous):

and this is where my yesterday question started

OpenStudy (amistre64):

we have to address this as it relates to the original problem

OpenStudy (amistre64):

we did the factors which gave us the criticals and forgot to address the orignial statement

OpenStudy (amistre64):

\[\frac{x^2+4x+1}{x+1}\]this is what we need to address :)

OpenStudy (anonymous):

can you show the work please. Coz im getting utterly confused again

OpenStudy (amistre64):

do you see this \[\frac{x^2+4x+1}{x+1}\ \ne\ x^2+3x\]

OpenStudy (anonymous):

I just did that

OpenStudy (anonymous):

We have to pass the 1 to the left hand side first and then get the common denominator, right

OpenStudy (amistre64):

have to? no, it all works out the same

OpenStudy (anonymous):

so this is what we end up with

OpenStudy (anonymous):

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