Answer
$5x(3x - 4)$
Work Step by Step
$15x^2 -20x$
Step 1: Factor out a common factor of 5x.
$15x^2 -20x = 5x(3x - 4)$
Step 2: There are two terms,but the binomial $3x - 4$ is not the difference of two squares or the sum or difference of two cubes.
Step 3: The factor $3x - 4$ cannot be factored further.