Mathematics, 04.07.2020 21:01 nicolasjarrin

There is a mistake in step #1 of the solving process below. {x^2} - 4x = 171\\{x^2} - 4x + 4 = 172\\{\left( {x - 2} \right)^2} = 173\\x - 2 = \pm \sqrt {17} 4\\x = 2 \pm \sqrt {17} x 2 −4x=171 x 2 −4x+4=172 (x−2) 2 =173 x−2= ± 17 4 x=2± 17 true or false

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There is a mistake in step #1 of the solving process below. {x^2} - 4x = 171\\{x^2} - 4x + 4 = 172\\...