Question

E²-225=0 solve using the extracting square root method

Answer 1

$Given \: E^{2} - 225 = 0$

$\implies E^{2} = 225$

$\implies E =\pm \sqrt{ 225}$

$\implies E =\pm \sqrt{ 15^{2}}$

$\implies E = \pm 15$

Therefore.,

$\green { E = -15 \: Or \: E = 15 }$

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