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3 years ago

9

The square root of 5x equals 10

=" \sqrt{?} 5x = 10" alt=" \sqrt{?} 5x = 10" align="absmiddle" class="latex-formula">

1 answer:

Mazyrski [523]3 years ago

6 0

X = 20

Square both sides:
5x = 100
x = 20

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<img src="https://tex.z-dn.net/?f=%5Csf%20%5Csqrt%7B12%7D%20%5Ctimes%20%5Csqrt%7B12%7D" id="TexFormula1" title="\sf \sqrt{12} \t

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$12$

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$\sqrt{12} \times\sqrt{12}$

$\mathrm{Apply\:radical\:rule}:\quad \sqrt{a}\sqrt{a}=a,\:\quad \:a\ge 0$

$\sqrt{12}\sqrt{12}=12$

$=12$

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