Question

Find the product. If the result is negative, enter "-". If the result is positive, leave the box empty.
7(-a^2)^2(-b^3)

Answer 1

The product is    - 7 a⁴ b³ .

If  'b' is negative, then the product is positive.

If  'b' is positive, then the product is negative.

The contents of the box are therefore indeterminate.