Question

81х²-121=0 уравнение

Answer 1

81х2-121=0

81х2=121

х=11/9

х=-11/9

х1=11/9;х2=11/9

Answer 2

To solve the equation 81x² - 121 = 0, we can follow these steps:

1. Add 121 to both sides of the equation:

   81x² = 121

2. Divide both sides by 81:

   x² = 121/81

3. Take the square root of both sides:

   x = ± √(121/81)

4. Simplify the square root:

   x = ± (11/9)

Therefore, the solutions to the equation 81x² - 121 = 0 are x = 11/9 and x = -11/9.