Question

3x+2=8/х срочноо!!!!​

Answer 1

Ответ:

x = -2

Объяснение:

Solve for x over the real numbers:

3 x + 2 = 8/x

Cross multiply:

x (3 x + 2) = 8

Expand out terms of the left hand side:

3 x^2 + 2 x = 8

Divide both sides by 3:

x^2 + (2 x)/3 = 8/3

Add 1/9 to both sides:

x^2 + (2 x)/3 + 1/9 = 25/9

Write the left hand side as a square:

(x + 1/3)^2 = 25/9

Take the square root of both sides:

x + 1/3 = 5/3 or x + 1/3 = -5/3

Subtract 1/3 from both sides:

x = 4/3 or x + 1/3 = -5/3

Subtract 1/3 from both sides:

Answer: |

| x = 4/3 or x = -2

Answer 2

Ответ:

первый х = -2 , второй х= 4/3