Question

Решите уравнение:
2$-1+\sqrt{x} =8,1.$

Answer 1

$2^{-1}+\sqrt{x}=8,1\\\\\dfrac{1}{2} +\sqrt{x}=8,1\\\\0,5+\sqrt{x}=8,1\\\\\sqrt{x} =8,1-0,5\\\\\sqrt{x}=7,6\\\\x=57,76$