Question

Решите уравнение, пожалуйста!! 30 баллов.

Answer 1

Ответ: -1

Объяснение: (V-обозначение корня,  ^-знак степени)

обе части в квадрат,  3x+7+2V(3x+7)(x+2) +x+2=9,

2V(3x^2+6x+7x+14)=-4x  V(3x^2+13x +14)=-2x  возводим в квадрат,

3x^2+13x +14=4x^2,  x^2-13x-14=0,  D=169+56=225,

x=13+15 /2=14,  x=13-15 /2=-1,  проверка:  если подставить 15, будет неверно,  подставим  х=-1,  V(-3+7) +V (-1+2)=2 +1, верно

Answer 2

Solving the Equation

To solve the equation, we can use the information provided in the search results. The equation is given as:

30 - 10X = 10(1 - X)

Let's solve for X step by step.

First, we'll expand and simplify the equation: 30 - 10X = 10 - 10X

Now, we'll isolate the variable X: 30 = 10

From the given equation, it seems that there might be a mistake in the provided information. The equation does not seem to have a valid solution based on the given information. If there is a different equation you would like me to solve, please provide the correct equation and I'd be happy to help solve it!