The zeros of f(x) = 72x^2-9x are?

Please answer clearly and explain the solution clearly and easy to understand. Thanks!
(guaranteed medal for a good answer)

Question

The zeros of f(x) = 72x^2-9x are?

Please answer clearly and explain the solution clearly and easy to understand. Thanks!
(guaranteed medal for a good answer)

anonymous · Answer

72x(x-9)=0
x=0 n x=9 are the zeros

anonymous · Answer

zeros of a polynomail are the values of the variable for which f(x)=0

moongazer · Answer

based on my answer key the answer is 0 and 1/8
i just don't know how it become like that

anonymous · Answer

oh m wrong
9x(8x-1)=0
x=0, 8x-1=0
x=1/8

moongazer · Answer

what happened to 9x??

anonymous · Answer

9x=0 
x=0 coz 9 is not equal to zero

moongazer · Answer

so it means you will get the value of 2 x's
x=0/9
which is x=0
and 8x-1=0
which is x=1/8
am i correct?

anonymous · Answer

right :)

moongazer · Answer

ok thanks!

moongazer · Answer

you earned a medal ^_^