Which expression is equivalent to this expression? (-5cd-4)(2cd2)2

Please help, I´m like failing LOL.

f the answer needs to be simplified, then the answer would be

-20c^2 d^3 - 16cd^2

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

25/6

step-by-step explanation:

you multiply 4 by the denominator (4*6=24) and add it to the numerator which makes it 25/6.