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X2-4x+4=0 discriminate ans and expliantion​

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ANSWER:

{x}^{2} - 4x + 4 = 0 \\ {x}^{2} - 4x = - 4 \\ {4x}^{2} = - 4 \\ \frac{ {4x}^{2} }{x} = \frac{ - 4}{x} \\ \frac{4 \times x \times x}{x} = \frac{ - 4}{x} \\ 4x = - 4x \\ x = \frac{ - 4x}{4} \\ x = - 1x


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