Question

2√x= 11, encontre o valor de x

Answer 1

$2 \sqrt{x} = 11 \\ \sqrt{x} = \frac{11}{2} \\ {( \sqrt{x} )}^{2} = {( \frac{11}{2} )}^{2} \\ x = \frac{121}{4} \\ \\ 2 \sqrt{ \frac{121}{4} } = 11 \\ 11 = 11$