The Zero Product Property states that any real number multiplied by 0, will equal zero.
When given an equation like a*b=0, either a=0, b=0, or both, in order to result in zero.

To solve your equation, you must set both factors equal to zero:
d+3/4=0     and     d+5/8=0

Now you can subtract both sides of each equation to find d.

Hi Laura,

The zero product property says that anything times zero is zero

So to make this equation equal zero, either (d+3/4) or (d+5/8) must be zero

We set both equal to zero, because either value for d will be correct.

d+3/4=0   d= -3/4

d+5/8=0   d= -5/8

So the answer is d= -3/4 or d= -5/8