evaluate the expression 3b-ac when a= 2,b =3, and c= -1.5
To evaluate the expression 3b - ac, we substitute the given values for a, b, and c.
So when a = 2, b = 3, and c = -1.5:
3b - ac = 3(3) - 2(-1.5)
= 9 + 3
= 12
Therefore, the value of the expression is 12.