Question

(x + 3x)2=14(даю 30 б)​

Answer 1

Ответ:

x=1,75

Пошаговое объяснение:

(х+3х)2=14

4х×2=14

8х=14

х=1,75

Answer 2

To solve the equation (x + 3x)^2 = 14, we need to simplify the left side of the equation and then solve for x.

Step 1: Simplify the left side of the equation. (x + 3x)^2 can be simplified as (4x)^2 = 16x^2.

So the equation becomes 16x^2 = 14.

Step 2: Solve for x. To isolate x, we divide both sides of the equation by 16: (16x^2)/16 = 14/16.

Simplifying further, we get: x^2 = 7/8.

Now, we take the square root of both sides to solve for x: √(x^2) = √(7/8).

Since x can be both positive and negative, we have two possible solutions: x = ±√(7/8).

So the solutions to the equation are x = √(7/8) and x = -√(7/8).