That is the same as



Now invert the second fraction and change the division sign
to multiplication (we use * instead of "×" so we don't confuse
it with the variable x}



Factor the left numerator:



Indicate the multiplication of the numerators over the
indicated multiplication of the denominators:



Cancel the 's



That leaves:



Cancel the 5 into the 10, getting 2 in the top:

   


That leaves



The x in the top cancels the square in the bottom:



And the final simplified answer is



Edwin