
4x-1/4x-3=x+2/1+x Help me!!!


Ответы на вопрос

Ответ:x = 21/8
Объяснение:
X=2 5/8 x=2, 625




To solve the equation 4x - 1 / 4x - 3 = x + 2 / 1 + x, you'll want to first clear the fractions by finding a common denominator. In this case, the common denominator is (4x - 3)(1 + x). Multiply both sides of the equation by this common denominator to eliminate the fractions:
[(4x - 1) / (4x - 3)] * [(4x - 3)(1 + x)] = [(x + 2) / (1 + x)] * [(4x - 3)(1 + x)]
Now, simplify both sides:
4x - 1 = (x + 2) * (4x - 3)
Next, distribute the right side:
4x - 1 = 4x^2 - 3x + 8x - 6
Now, combine like terms on the right side:
4x - 1 = 4x^2 + 5x - 6
To isolate the variable x, subtract 4x from both sides of the equation:
-1 = 4x^2 + 5x - 6 - 4x
Simplify the equation further:
-1 = 4x^2 + x - 6
Now, bring everything to one side of the equation to set it equal to zero:
4x^2 + x - 6 + 1 = 0
4x^2 + x - 5 = 0
Now, you have a quadratic equation in the form of ax^2 + bx + c = 0. You can solve it using the quadratic formula:
x = (-b ± √(b² - 4ac)) / (2a)
In this case, a = 4, b = 1, and c = -5. Plug these values into the quadratic formula:
x = (-1 ± √(1² - 4 * 4 * (-5))) / (2 * 4)
x = (-1 ± √(1 + 80)) / 8
x = (-1 ± √81) / 8
x = (-1 ± 9) / 8
Now, you have two possible solutions:
- x = (-1 + 9) / 8 = 8 / 8 = 1
- x = (-1 - 9) / 8 = -10 / 8 = -5/4
So, the solutions to the equation are x = 1 and x = -5/4.


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