Question

Evaluate the following expression using the values given:

Find 3x2 - y3 - y3 - z if x = 3, y = -2, and z = -5.

Numerical Answers Expected!

Answer 1

3x^2 - y^3 - y^3 - z when x = 3, y = -2 and z = -5
now we sub
3(3^2) - (-2^3) - (-2^3) - (-5) =
3(9) - (-8) - (-8) + 5 =
18 + 8 + 8 + 5 =
39

Answer 2

with problems such as these, you have to make sure and pay attention to your signs because one little mistake can mess the whole problem up

Answer 3

thanks
i have to do this big test tomorrow and i didnt understand it tel now