To evaluate the expression 3b - ac when a = 2, b = 3, and c = -1.5, we substitute the values of a, b, and c into the expression.
3b - ac = 3(3) - 2(-1.5)
We can simplify the expression further by performing the calculations.
= 9 + 3
= 12
Therefore, the expression evaluates to 12 when a = 2, b = 3, and c = -1.5.
Evaluate the expression 3b-ac when a = 2, b =3, and c=-1.5.
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