Question

$5 { \times }^{2} - 9 = 46$
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Answer 1

Respuesta:

$5 { x }^{2} - 9 = 46 \\ 5x {}^{2} = 46 + 9 \\ 5x {}^{2} = 55 \\ x {}^{2} = \frac{55}{5} \\ x {}^{2} = 11 \\ x = \sqrt{11}$