help plz

Simplify sqrt{28x} * sqrt{15x} * sqrt{20x}. Express your answer in simplest radical form in terms of x.

Hello Guest!

$\sqrt{28x}\cdot \sqrt{15x} \cdot \sqrt{20x}=\sqrt{x^3\cdot 2^2\cdot 7\cdot 3\cdot 5\cdot 2^2\cdot 5}$ = $2^2\cdot 5\cdot x\cdot \sqrt{3\cdot 7\cdot x}$

$=20x\cdot \sqrt{21x}$

  !