+4711 How would you simplify.
6x-12 / x-2
3x/2y * 8y/3z * 5z/4x
Please explain.
+129899 (6x-12) / (x-2) =
6(x-2) / (x -2) = [the x - 2 terms "cancel" ]
6
3x/2y * 8y/3z * 5z/4x = [ multiplying numerators and denominators ]
[120 xyz] / [ 24 yzx] [ note that x y z and y z x are the same thing].....so they "cancel"....and we have
120 / 24 =
[12 x 10] / [12 x 4 ] [ the 12s "cancel] =
10 / 4 =
5 / 2
+4711 Thank you CPhill :)
My problem is how did you know when or when not to factorise?
+129899 Welll, MG1....there wasn't any "factorizing" in the second one.....just multiplying and "cancelling"
In the first......is see that (6x - 12) can be factored by taking out the greatest common factor between 6 and 12, which is 6....so..... that leaves us with 6(x - 2).....and as I said, the "x - 2" factors "cancel" in both numerator and denominator.....
Does that make sense ???
