Thread: inequality question :)

solve the inequality..

-35 < 6x + 7 < 1

Originally Posted by johnsmith666

solve the inequality..

-35 < 6x + 7 < 1

First solve then solve
Your answer is between those 2 answers





so everything between -7 (-7 not included) and infinity is a possible answer





so everything between -1 and - infinity is a possible answer here

making the final answer between -7 and -1 (both not included)... (I totally forgot how to put this mathematically )

Edit: something like this... [-7,-1](I think? )

solve the inequality..



isolate the varible in the middle



divide each term by 6



the solution set is

thanksss shinnnndingggg

Originally Posted by bigwave

isolate the varible in the middle



divide each term by 6

Lol, I got owned...

But this won't always work, will it?

edit: Use the thanks button :'D

u waatttt?? im confusedd i used both ur answers cos i needed to show working. im doing an AS level paper u see.

if we try to divide each term by a variable it won't work because we do not know the sign.

i followed an example out of text book which was a similiar problem

we both have the same answers

consider multiple replies to the same post a good thing...

could u try and do another question for me please .

express x^2 - 5x +1/4 in the form (x-a)^2 - b

thanks

This AS level is harder then the GCSE papers I've seen...

Originally Posted by johnsmith666

could u try and do another question for me please .

express x^2 - 5x +1/4 in the form (x-a)^2 - b

thanks

do you know how to "complete the square" on this..