Question

3 = blank X blank X blank = -27
fill in ALL the blanks​

Answer 1

Explanation:

3 is never equal to -27, no matter what we put into the blanks.

I think what you mean is

3 × blank × blank = -27

or simply

blank × blank × blank = -27 (without the 3)

there are 2 different solutions possible :

all 3 blanks are -3.

any 2 blanks are 3, and the third one is -3.

as

-3×-3×-3 = -27

and

3×3×-3 = 3×-3×3 = -3×3×3 = -27