Question

X/3=27/X then X is =​

Answer 1

Answer:

x=9

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Step-by-step explanation:

Answer 2

$\frac{x}{3} = \frac{27}{x}$

$3x \times \frac{x}{3} = 3x \times \frac{27}{x}$

$xx = 3 \times 27$

${x}^{2} = 3 \times 27$

${x}^{2} = 81$

${x}^{2} - 81 = 0$

$x = \frac{ - b \underline + \sqrt{ {b}^{2} - 4ac } }{2a}$

${x}^{2} - 81 = 0$

a=1

b=0

c=-81

$x = \frac{ - 0\underline + \sqrt{ {0}^{2} - 4 \times 1( - 81) } }{2 \times 1}$

$x = \frac{0 \underline + 18}{2}$

$x = \frac{0 + 18}{2}$

$x = \frac{0 - 18}{2}$

x=9

x=-9