Question

problem 10: spiral review
write an equation using four numbers that multiply to 0.
□ · □ · □ · □ = 0

Explanation:

Step1: Recall zero product property

If any factor in a multiplication is 0, the product is 0. We need 4 numbers, so set one as 0, others as any real numbers.

Step2: Choose valid numbers for the equation

Select 1, 2, 3, 0 (any non-zero numbers work with 0).
<Expression>
$1 \cdot 2 \cdot 3 \cdot 0 = 0$
</Expression>

Answer:

$1 \cdot 2 \cdot 3 \cdot 0 = 0$
(Note: Any equation where at least one of the four numbers is 0 is correct, e.g., $5 \cdot (-2) \cdot 0 \cdot 7 = 0$ is also valid.)