I need help with 2 problems, please. I'm not sure how to solve them.

#1:

$\displaystyle

4x^{2}(2^{x}) - 9(2^{x}) = 0

$

#2:

$\displaystyle

\frac{(x+4)10^{x}}{x-3} = 2x(10^{x})

$

Thanks for the help! I haven't done this kind of math in awhile, and I'm just confused.