Answers

2016-07-29T22:43:58+08:00
I'm not sure with this but:

= 81z^3 / 36y   ÷    27(2z^2) / 12xy   (rewrite)
= 81z^3 / 36y   ÷    54z^2 / 12xy        (multiply the 27 to the 2z^2)
= 81z^3 / 36y   *    12xy / 54z^2        (change sign from ÷ to *; reciprocate)
= 3z / 3y           *     x / 2                   (simplify the equation)
= 3xz / 6    OR  xz/2 (1/2*xz)             multiply numerator and denominator ; simplify

*if the answer is wrong, I'm kinda sure the solution is like that.
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