Math Help - anyone could help with this simple question

1. anyone could help with this simple question

1/2x +1/4-1/6 these are fractions just dont know what to do with the 2x

and
multiplication

(x+5)(x+3)
x^2 +8x+15
is that correct? if not can you help, or link a site that can.
Thank you.

factorising
X^2-x-6 is this correct (x-3)(x+2)

2. Originally Posted by crashuk
1/2x +1/4-1/6 these are fractions just dont know what to do with the 2x Are you asked to combine them? If so, find the common denominator first and then combine them...

and
multiplication

(x+5)(x+3)
x^2 +8x+15
is that correct? Correct

factorising
X^2-x-6 is this correct (x-3)(x+2) Correct
Hope this helps!

--Chris

3. 1/2x +1/4-1/6 these are fractions just dont know what to do with the 2x
ok you can subtract 1/6 from 1/4 by finding the common demnomater which is 12. so you will get 3/12 - 2/12 = 1/12
you cannot touch the 1/2x because of the x so the answer is:
1/2x + 1/12

and
multiplication

(x+5)(x+3)
x^2 +8x+15
is that correct? if not can you help, or link a site that can.
Thank you. yes you are right

factorising
X^2-x-6 is this correct (x-3)(x+2) yep

4. Originally Posted by zooanimal98
1/2x +1/4-1/6 these are fractions just dont know what to do with the 2x
ok you can subtract 1/6 from 1/4 by finding the common demnomater which is 12. so you will get 3/12 - 2/12 = 1/12
you cannot touch the 1/2x because of the x so the answer is:
1/2x + 1/12
Yes you can...the common denominator in this case would be $12\color{red}x$

So you would get $\frac{6}{12x}+\frac{3x}{12x}-\frac{2x}{12x}=........$

--Chris