Answers created by erinspoons

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How do you simplify $(x - 2 + 3 i) (x - 2 - 3 i)$ $(x-2+3i)(x-2-3i)$ ?
How do you solve $log x + log (x + 21) = 2$ $logx+log(x+21)=2$ ?
How do you find the exact solutions to the system $\frac{x^{2}}{30} + \frac{y^{2}}{6} = 1$ $x^2/30+y^2/6=1$ and $x = y$ $x=y$ ?
How do you evaluate $g (m + 1)$ $g(m+1)$ if $g (x) = 2 x^{2} - 4 x + 2$ $g(x)=2x^2-4x+2$ ?
Let $f (x) = x^{2} - 12$ $f(x)=x^2-12$ and $g (x) = 15 - x$ $g(x)=15-x$ , how do you find $(\frac{f}{g}) (5)$ $(f/g)(5)$ ?