Question

Решите путем ввода новой переменной
x + 5√{x} -36 = 0

Answer 1

Вотhttps://tex.z-dn.net/?f=x%2B5+%5Csqrt%7Bx%7D+-36%3D0+%5C%5C+y%3D+%5Csqrt%7Bx%7D++%5C%5C+y%5E2%2B5y-36%3D0+%5C%5C+D%3Db%5E2-4ac%3D5%5E2-4%2A1%2A%28-36%29%3D25%2B144%3D169+%5C%5C+y_1%3D+%5Cfrac%7B-5-+%5Csqrt%7B169%7D+%7D%7B2%2A1%7D+%3D-9+%5C%5C+y_2%3D+%5Cfrac%7B-5%2B+%5Csqrt%7B169%7D+%7D%7B2%2A1%7D+%3D4+%5C%5C+y_1%3D+%5Csqrt%7Bx%7D+%3D-9+%5C%5C+x_1%3D81+%5C%5C+y_2%3D+%5Csqrt%7Bx%7D+%3D4+%5C%5C+x_2%3D16%0A