Question

х в квадрате - 15=3 - 2х в квадратепомогите решить уровнение,чень нужно,через час нужно сдать контру(((

Answer 1

3x^2=18
x^2=6
x=квадратный корень из 6

Answer 2

Solving the Equation

To solve the equation x^2 - 15 = 3 - 2x^2, we can follow these steps:

1. Combine Like Terms: - Combine the x^2 terms on one side and the constant terms on the other side of the equation.

2. Isolate x: - Once the x^2 terms are on one side and the constant terms on the other, isolate x.

3. Solve for x: - After isolating x, solve for its value.

Let's proceed with solving the equation step by step.

Step 1: Combine Like Terms

The given equation is x^2 - 15 = 3 - 2x^2. To combine like terms, we can add 2x^2 to both sides of the equation to get all the x^2 terms on one side:

x^2 + 2x^2 - 15 = 3

Step 2: Isolate x

Now, we can combine the x^2 terms:

3x^2 - 15 = 3

Step 3: Solve for x

Next, we can add 15 to both sides of the equation:

3x^2 = 18

Finally, to solve for x, we can divide both sides by 3:

x^2 = 6

Conclusion

The solution to the equation x^2 - 15 = 3 - 2x^2 is x^2 = 6.