Question

If x=-2 and 3x^2-5x+1/x how to solve by putting the values?

Answer 1

Wherever you see an "x" put in (-2) and do the arithmetic.

Answer 2

I did put the values but I dont know what to do after that?

Answer 3

3(-2)^2 is the first term. What order of operations are you going to use (-2)^2 or 3(-2)?

Answer 4

3(-2)^2

Answer 5

3(4)..right?

Answer 6

Yes! Remember Please excuse My Dear Aunt Sally. You have to perform the operations in the following order
1. The operation inside the parenteses
2. Exponentiation
3. Multiplication
4. Division.
5. Addition
6. Subtraction

The first letters are in the "Please excuse..."
There was no operation within the parentheses, so you exponentiated . Good - what's next?