√(2-x)=√2×√50
одз 2-x ≥ 0 x≤ 2
√(2-x) = √2×√50
√(2-x) = √2×√2×√25
√(2-x) = √2²×√5 ²
√(2-x) = 10
2 - x= 10²
х=2 - 100
х=-98
√(2-x)=√2×√50
одз 2-x ≥ 0 x≤ 2
√(2-x) = √2×√50
√(2-x) = √2×√2×√25
√(2-x) = √2²×√5 ²
√(2-x) = 10
2 - x= 10²
х=2 - 100
х=-98