This is an error in the Algebra Solutions Manual

Mary asked,

In Algebra 1, chapter 5 lesson 1 problem 10x, the answer key says the answer is true for all positive integers. But isn’t it true for all integers? 1 to the power of x =1. If it is a negative power, it is still one, right?

Mary

**Dr. Callahan Answer:**

You are correct. Should be for all real numbers – not just integers. I tend to test these in a calculator to make sure though 😉

So that is incorrect in the Solutions manual.

Just for completeness sake – my goto math tool is Wolfram – so here is there answer.