I believe the answer is 0.008
because
0.2 × 0.2 × 0.2 is equivalent to 0.008
It lies between -3 and -4.
An integer is any whole number, positive or negative.
When you collect terms, for
the first one you get
-x² -3xy +4 = -x² -3xy +4 . . . . . . equivalent equations.
Any decimal under 1, i believe.