1) √(1/15) - 4x = 0.2
√(1/15) = 1/√15 = √15 /15
√15 / 15 - 4x = 0.2
√15 - 60x = 0.2*15
√15 - 60x = 3
-60x = 3 - √15
x = (3 - √15)/-60
x = (√15 - 3)/60
2) √5 - 4x = -x
√5 + x = 4x
√5 = 4x - x
√5 = 3x
x = √5 / 3
Ответ: x = (√15 - 3)/60 и x = √5 / 3.
1) √(1/15) - 4x = 0.2
√(1/15) = 1/√15 = √15 /15
√15 / 15 - 4x = 0.2
√15 - 60x = 0.2*15
√15 - 60x = 3
-60x = 3 - √15
x = (3 - √15)/-60
x = (√15 - 3)/60
2) √5 - 4x = -x
√5 + x = 4x
√5 = 4x - x
√5 = 3x
x = √5 / 3
Ответ: x = (√15 - 3)/60 и x = √5 / 3.