Question

Evaluate the expression if a = 3 over 4, b = -8, c = -2, and d = 3

Answer 1

45

Explanation:

So we have the expression:

`ab^2-d`

And we want to evaluate it for a=3/4, =-8, and d=3.

Thus, substitute in these values:

`=((3)/(4))(-8)^2-3`

Do the exponent first. -8 squared is positive 64:

`=((3)/(4))(64)-3`

And 3/4 times 64 is 48:

`=(48)-3`

Subtract:

`=45`