What is the difference

a
b
c
d

D. x^2 +3x -20)/(x+3)(x-5)(x+7)

Step-by-step explanation:

The given expression is  

The denominators can be factorable.

= x / (x + 3)(x -5)  - 4/(x-5)(x + 7)

Here (X+3)(x -5)(x + 7) is the Least Common Divisor.

=

= [x^2 + 7x -4x -20] / (x+3)(x-5)(X+7)

= (x^2 +3x -20)/(x+3)(x-5)(x+7)

Answer D. x^2 +3x -20)/(x+3)(x-5)(x+7)

Hope this will helpful.

Thank you.

0.0076, if you meant 4.125 divided by 0.03125 it would be 132

step-by-step explanation:

first you have to move the decimal in 0.03125 over until its behind the 5 which is 5 places over. now the number is 3125

then you have to move the decimal in 4.125, 5 places over. now the number is 4,112,500.

now you divide like you would normally would and get 0.0076