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

Note by Pratik Raj 3 years, 1 month ago

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Taking square gives ± sign and we will take minus because we have to assume that 6 ≠ -6 – Krishna Sharma · 3 years, 1 month ago

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Square root cancels sign And if removing power from squares, then sign of either side remains same – Divas Mayank · 3 years, 1 month ago

2 step is wrong. – Arsalan Ali · 3 years, 1 month ago

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TopNewestTaking square gives ± sign and we will take minus because we have to assume that 6 ≠ -6 – Krishna Sharma · 3 years, 1 month ago

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Square root cancels sign And if removing power from squares, then sign of either side remains same – Divas Mayank · 3 years, 1 month ago

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2 step is wrong. – Arsalan Ali · 3 years, 1 month ago

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