Question

simplify 18x - 6/9x^5 all over 15x + 5/21x^2

Answer 1

ok now cl9ose this and it will just be me and u

Answer 2

ok done

Answer 3

14(3x-1) over 5x^3(3x+1)

Answer 4

explanation again? pls

Answer 5

ok i want you to try 6(3x-1)/9x^5/5(3x+1)/21x^2 now try to simplfy

Answer 6

ok one sec :P

Answer 7

I think what I did Is wrong? I'm so confused ugh. I got up to 6(3x - 1)/3x^5/7x^2/5(3x +1) yeah I have no idea what that is

Answer 8

ok this on i acutaly dont know how to explan it so i will give you a link

Answer 9

ok

Answer 10

hold on i got it we're going to divide (18x - 6)/9x^5 by (15x + 5)/21x^2. the easiest way to do this, is to "flip the 2nd fraction", and multiply:

[(18x - 6)/9x^5] * [21x^2/(15x + 5)]

now the x^2 on top of the second fraction will cancel partially with the x^5 on the bottom faction, leaving x^3 on the bottom. we can also take a 6 out of 18x - 6 = 6(3x - 1), and a 5 out of 15x + 5 =
5(3x + 1) so:

[(18x - 6)/9x^5] * [21x^2/(15x + 5)] =

[6(3x - 1)/9x^3] * [21/(5(3x + 1))] =

[2(3x - 1)/x^3] * [7/(5(3x + 1)] (3 from the 9 cancelling with 3 from the 6, the other 3 cancelled with the 3 from 21)

that's all the cancelling we can do, so now we multiply top times top, and bottom times bottom:

= 14(3x - 1)/(5x^3(3x + 1)), which is probably "simple enough" although you can multiply everything together:

= (42x - 14)/(15x^4 + 5x^3) sorry i did the math wrong when i did it the first time

Answer 11

ok that makes more sense than what I was doing lol. two more? pls

Answer 12

ok i will message you when i am ready i have to go for a minute ok

Answer 13

alrighty

Answer 14

i promise i will be back