Hi,
I am after some clarification on squaring negative values and the correct way to apply orders of operation...
I understand that −13∗−13=169 because multiplying a negative by a negative gives a positive value as the result.
However, I am confused about calculating −132, Logic tells me this should also be 169 as −132 seems to be the same as −13∗−13=169. But if I think about the order of operations BODMAS or BIDMAS then I should calculate the 132 before applying the negative value, so...
Step 1: Calculate the square of 13: 13∗13=169
Step 2: Apply the negative, giving −169
My Casio Calculator agrees that −132=−169 (As does Google) (thus order of operation is being applied)
Every other reference (for example cuemath.com) I have read on the internet tells me that squaring negative values always gives a positive.
Is there a hidden rule states we should treat −132 as (−13)2 ?
So is it 169 or -169 that is the result of −132 ? And why?
I am after some clarification on squaring negative values and the correct way to apply orders of operation...
I understand that −13∗−13=169 because multiplying a negative by a negative gives a positive value as the result.
However, I am confused about calculating −132, Logic tells me this should also be 169 as −132 seems to be the same as −13∗−13=169. But if I think about the order of operations BODMAS or BIDMAS then I should calculate the 132 before applying the negative value, so...
Step 1: Calculate the square of 13: 13∗13=169
Step 2: Apply the negative, giving −169
My Casio Calculator agrees that −132=−169 (As does Google) (thus order of operation is being applied)
Every other reference (for example cuemath.com) I have read on the internet tells me that squaring negative values always gives a positive.
Is there a hidden rule states we should treat −132 as (−13)2 ?
So is it 169 or -169 that is the result of −132 ? And why?