Excel in math, science, and engineering

New user? Sign up

Existing user? Sign in

(6)^2=(-6)^2 => 6=-6 => 1=-1

Note by Pratik Raj 2 years, 9 months ago

Sort by:

Taking square gives ± sign and we will take minus because we have to assume that 6 ≠ -6 – Krishna Sharma · 2 years, 9 months ago

Log in to reply

Square root cancels sign And if removing power from squares, then sign of either side remains same – Divas Mayank · 2 years, 9 months ago

2 step is wrong. – Arsalan Ali · 2 years, 9 months ago

Problem Loading...

Note Loading...

Set Loading...

## Comments

Sort by:

TopNewestTaking square gives ± sign and we will take minus because we have to assume that 6 ≠ -6 – Krishna Sharma · 2 years, 9 months ago

Log in to reply

Square root cancels sign And if removing power from squares, then sign of either side remains same – Divas Mayank · 2 years, 9 months ago

Log in to reply

2 step is wrong. – Arsalan Ali · 2 years, 9 months ago

Log in to reply