Will the difference of 2 radicals always equal a single radical?

Asap 25 pts + brainlest to right/best answer

Find the value of x for which abcd must be a parallelogram -9-6x x-30

Will give let f(x)=2x and g(x)=[tex]2^{x}[/tex] graph the functions on the same coordinate plane. what are the solutions to the equation f(x)=g(x) ? enter your answers in the boxes x=[? ] or x=[? ]