Evaluate the expression 3b-ac when a=2, b=3, and c=-1.5

Answer 1

To evaluate the expression 3b - ac when a=2, b=3, and c=-1.5, substitute the values into the expression:

3b - ac = 3(3) - (2)(-1.5)

= 9 - (-3)

= 9 + 3

= 12

Therefore, when a=2, b=3, and c=-1.5, the expression 3b - ac evaluates to 12.