Question

14x*9x=391 уравнением​

Answer 1

Ответ:

Пошаговое объяснение:

14х+9х=391, 23х=391 , х= 391:23, х=17

Answer 2

14х+9х=391

23х=391

х=391:23

х=17

Ответ: 17

Answer 3

To solve the equation 14x * 9x = 391, we need to find the value of x that satisfies the equation. First, we'll simplify the equation:

14x * 9x = 391

To simplify, we multiply the x terms together:

126x^2 = 391

Now, we have a quadratic equation in standard form:

126x^2 - 391 = 0

To solve for x, we can use the quadratic formula:

x = (-b ± √(b^2 - 4ac)) / 2a

where a = 126, b = 0, and c = -391.

Calculating the values:

x = (± √(0^2 - 4 * 126 * -391)) / 2 * 126

x = (± √(0 - (-198444))) / 252

x = (± √198444) / 252

x = (± 445.564) / 252

So, the two solutions for x are:

x = 445.564 / 252 ≈ 1.769

x = -445.564 / 252 ≈ -1.769

Therefore, the solutions to the equation are approximately x ≈ 1.769 and x ≈ -1.769.