Question

Medal for explanation!

Evaluate 1/2a^-4b^2 for a=-2 and b=4.

Please give some help.

Answer 1

Evaluate means to substitute the given values into where they are in the given expression. In this case, you are given the expression 1/2a^-4b^2, and you are given that a = -2 and b = -4. You would substitute -2 for a in the expression and -4 for b. Once you do that, I assume you can find the answer. Get it?

Answer 2

What about the exponents? Don't they come first?

Answer 3

No. Substitute the values in and put them in parentheses, then solve with the exponents.

Answer 4

Is the answer 4?

Answer 5

I believe so. Good job on solving it.

Answer 6

Thanks for the help.

Answer 7

You're absolutely welcome. Feel free to ask me for help anytime.