Question

The ______ product rule says that when the product of two terms is zero, then either of the terms is equal to zero.

• A. one
• B. two
• C. three
• D. zero

Answer 1

Answer: (D)

zero

The zero product rule says that when the product of two terms is zero, then either of the terms is equal to zero.
Example: $(x-3)(x-2)=0$
Now, by the zero product property, either $x-3=0,x-2=0$
which means either $x=3$ or $x=2$.