Question

Как решить вот этот пример объясните и напишите плиииз......заранее спасибооо огромное Представьте в виде дроби выражение 10х/2х-3-5х найдите его значение при х=0.5

Answer 1

10х^2/(2х-3)  -5х = 10х^2/(2х-3)  -5х (2x-3)/(2x-3) = (10x^2-10x^2+15x)/(2x-3) = 15x/(2x-3)
х= 0,5
15*1/2/(2*1/2-3)= -15/4

Answer 2

Solving the Fraction Expression

To represent the given expression as a fraction, we can use the following steps:

1. Write the Expression as a Fraction: The given expression is 10x / 2x - 3 - 5x. We can rewrite it as a fraction: 10x / (2x - 3) - 5x.

2. Substitute the Value of x: After representing the expression as a fraction, we can substitute the value of x, which is 0.5 in this case.

3. Calculate the Value: Once we have substituted the value of x, we can calculate the value of the expression.

Let's proceed with these steps to solve the given expression.

Calculation

1. Write the Expression as a Fraction: The given expression 10x / 2x - 3 - 5x can be rewritten as a fraction: 10x / (2x - 3) - 5x.

2. Substitute the Value of x: Now, we substitute the value of x, which is 0.5, into the expression: 10 * 0.5 / (2 * 0.5 - 3) - 5 * 0.5

3. Calculate the Value: We can now calculate the value of the expression: 5 / (1 - 3) - 2.5 5 / (-2) - 2.5 -2.5 - 2.5 = -5

Conclusion

After solving the given expression and substituting the value of x as 0.5, the value of the expression 10x / 2x - 3 - 5x is -5.