2013年10月11日星期五

Help in mathmatics. please!!!!!?

business telephone numbers

Use the roster notation to designate the following sets of real numbers.


A={x|x^2-1=0}

E={x|(x+8)^2=9^2}

F={x|(x^2+16x)^2=17^2}


if you can help me with any, i will be glad.

thanks.

Help in mathmatics. please!!!!!?

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