Question

I need to change this expression to postfix form.

(12*A^2-2*A+31)/(4*A+6)

I know how to do this except for the squaring part. I got stuck.

This is my try.

12 A 2 ^ * 2 A * - 31 + 4 A * 6 + /

When I test this in a calculator, it gives different results. Another problem is that I don't really know how to square in a postfix calculator.

I would really appreciate some help

Thank you

Answer 1

I think I figure it out. The answer is:

12 A ^2 * 2 A * - 31 + 4 A * 6 + /

I figured that that the square sign and the number 2 count as one operator.

For ^2 I just use the x^2 button on the calculator and it gave me the same answers.