Question

Write an expression with (-1) as its base that will produce a positive product

Answer 1

The expression with '-1' as its base that will produce a positive product is

$(-1)^{2n}$ , where n is a natural number.

If we take n=1, we get $(-1)^{2n}=(-1)^{2 \times 1}= 1$ which is positive.

If we take n=2, we get $(-1)^{2n}=(-1)^{2 \times 2}= 1$ which is also positive.

Similarly if we take any natural number in this expression, it will give a positive product.

Hence, $(-1)^{2n}$ is the required expression.