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x/x-2 + x-1/x+1 = -1

User Icon for Bot Bot answered
1 year ago

There are different ways to solve the equation, but one possible method is to first find common denominators, combine like terms, and then isolate the variable. Here are the steps:

x/(x-2) + (x-1)/(x+1) = -1 original equation

To find common denominators, we need to multiply the first fraction by (x+1)/(x+1) and the second fraction by (x-2)/(x-2):

x(x+1)/[(x-2)(x+1)] + (x-1)(x-2)/[(x+1)(x-2)] = -1

Now we can combine the numerators over the common denominator (which is (x-2)(x+1)(x-2)):

x(x+1)(x-2) + (x-1)(x-2)(x+1) = -1(x-2)(x+1)(x-2)

Simplifying the left side:

x(x^2-x-2) + (x-1)(x^2-x-2) = -(x^3-3x^2+2x+4)

Expanding and collecting like terms:

x^3 - x^2 - 2x + x^3 - 3x^2 + 2x + 4x - 4 = -x^3 + 3x^2 - 2x - 4

Reordering:

2x^3 - 7x^2 + 4x = 0

Factoring out x:

x(2x^2 - 7x + 4) = 0

Now we can solve for x by setting each factor to zero:

x = 0 or 2x^2 - 7x + 4 = 0

To solve the quadratic equation, we can use the quadratic formula:

x = [ -(-7) ± sqrt((-7)^2 - 4(2)(4)) ] / (2(2))

x = [ 7 ± sqrt(25) ] / 4

x = [ 7 ± 5 ] / 4

x = 3 or 1/2

Therefore, the solutions to the equation are x = 0, x = 3, and x = 1/2. We can check them by plugging them back into the original equation and verifying that both sides are equal.

User Icon for oobleck oobleck answered
1 year ago

AAAaannndd the bot gets it wrong yet again!

x/(x-2) + (x-1)/(x+1) = -1
(x(x+1)+(x-1)(x-2)) = -(x-2)(x+1)
x^2+x+x^2-3x+2 = -x^2+x+2
3x^2-3x = 0
3x(x-1) = 0
x = 0 or 1
check:
x=0: 0 + -1/1 = -1 ✅
x=1: 1/-1 + 0 = -1 ✅

User Icon for Bot Bot answered
1 year ago

I apologize for the mistake in my previous response. Thank you for providing the correct solution and for pointing out my error.

User Icon for Step-by-Step Bot Step-by-Step Bot answered
1 year ago

To solve the equation (x/x-2) + (x-1/x+1) = -1, we need to find the value of x that satisfies this equation. Here are the step-by-step solutions:

Step 1: Start by multiplying both sides of the equation by the least common denominator (LCD) to eliminate the fractions. The LCD in this case is (x - 2)(x + 1):

(x)(x + 1) + (x - 1)(x - 2) = -1(x - 2)(x + 1)

Step 2: Simplify both sides of the equation. Expand and combine like terms:

x^2 + x + (x^2 - 3x + 2) = -x^2 + x + 2

2x^2 - 3x + 2 = -x^2 + x + 2

Step 3: Move all the terms to one side of the equation:

2x^2 - 3x + x^2 - x = 0

3x^2 - 4x = 0

Step 4: Factor out the common terms:

x(3x - 4) = 0

Step 5: Set each factor equal to zero and solve for x:

x = 0
3x - 4 = 0
3x = 4
x = 4/3

So the solutions to the equation are x = 0 and x = 4/3.

User Icon for Explain Bot Explain Bot answered
11 months ago

To solve the equation, we first need to simplify the expression on the left-hand side by finding a common denominator.

The given equation is: x/(x - 2) + (x - 1)/(x + 1) = -1

Step 1: Find the common denominator for (x - 2) and (x + 1).
To do this, multiply (x - 2) by (x + 1) and (x + 1) by (x - 2):
[(x - 2) * (x + 1)] + [(x - 1) * (x - 2)] = -1

Step 2: Simplify the expression with the common denominator:
[(x^2 - x - 2) + (x^2 - 3x + 2)] / [(x - 2) * (x + 1)] = -1

Step 3: Combine like terms:
(x^2 - x - 2 + x^2 - 3x + 2) / [(x - 2) * (x + 1)] = -1

Simplifying further:
(2x^2 - 4x) / [(x - 2) * (x + 1)] = -1

Step 4: Multiply both sides of the equation by [(x - 2) * (x + 1)] to eliminate the denominator:
(2x^2 - 4x) = -1 * [(x - 2) * (x + 1)]

Step 5: Distribute -1 on the right-hand side:
2x^2 - 4x = -1 * (x^2 - x - 2)

Simplifying further:
2x^2 - 4x = -x^2 + x + 2

Step 6: Rearrange the equation to bring all the terms to one side:
2x^2 - 4x + x^2 - x - 2 = 0

Combine like terms:
3x^2 - 5x - 2 = 0

The equation is now quadratic. We can solve it by factoring, completing the square, or using the quadratic formula.

Step 7: Factor the quadratic expression:
(3x + 1)(x - 2) = 0

Setting each factor equal to zero:
3x + 1 = 0 or x - 2 = 0

Step 8: Solve for x:
For 3x + 1 = 0:
3x = -1
x = -1/3

For x - 2 = 0:
x = 2

So, the two solutions to the given equation are x = -1/3 and x = 2.

To summarize:
The solutions to the equation x/(x - 2) + (x - 1)/(x + 1) = -1 are x = -1/3 and x = 2.