Question

$2x2 = 50$
$x2 - 4 = 0$
$x2 - 9 = 0$

Answer 1

${2x}^{2} = 50 \\ {x}^{2} = 25 \\ x = \sqrt{25} \\ x = 5\\ - - - - - - - - - - - - - - - - \\ {x}^{2} - 4 = 0 \\ {x}^{2} = 4 \\ x = \sqrt{4} \\ x = 2 \\ - - - - - - - - - - - - - - - - \\ {x}^{2} - 9 = 0 \\ {x}^{2} = 9 \\ x = \sqrt{9} \\ x = 3$

Answer 2

$\sf2x {}^{2} = 50 \\ \\ \sf {x}^{2} = \frac{50}{2} \\ \\ \sf {x}^{2} = 25 \\ \\ \sf \: x = \sqrt{25} \\ \\ \red{ \sf \: x = 5}$

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$\sf {x}^{2} - 4 = 0 \\ \\ \sf {x}^{2} = 0 + 4 \\ \\ \sf \: x = \sqrt{4} \\ \\ \red{ \sf \: x = 2}$

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$\sf {x}^{2} - 9 = 0 \\ \\ \sf {x}^{2} = 9 \\ \\ \sf \: x = \sqrt{9} \\ \\ \sf \red{x = 3}$

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