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OpenStudy (anonymous):
5z^3-z^4>or equal 0 solve for z
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OpenStudy (anonymous):
\[5z^3-z^4\ge0\]
hartnn (hartnn):
can u take z^3 common from those 2 terms and tell me what u get?
OpenStudy (anonymous):
z^3(5-z)
hartnn (hartnn):
z^3(5-z)>=0 so that i can write as z^3>=0 , 5-z>=0 got this?
OpenStudy (anonymous):
so 0<z<5?
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hartnn (hartnn):
absolutely,just put = sign also with <
OpenStudy (anonymous):
\[0 \le z \le 5\]
hartnn (hartnn):
yup :)
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