SOLUTION: What would be the solution for x in the rational equation: x^2/(x-3)= (x+2)/(2x-5)

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Question 1167313: What would be the solution for x in the rational equation:
x^2/(x-3)= (x+2)/(2x-5)

Answer by MathTherapy(10557) About Me  (Show Source):
You can put this solution on YOUR website!
What would be the solution for x in the rational equation:

x^2/(x-3)= (x+2)/(2x-5)

matrix%281%2C3%2C+x%5E2%2F%28x+-+3%29%2C+%22=%22%2C+%28x+%2B+2%29%2F%282x+-+5%29%29
x%5E2%282x+-+5%29+=+%28x+-+3%29%28x+%2B+2%29 ---- Cross-multiplying
2x%5E3+-+5x%5E2+=+x%5E2+-+x+-+6
2x%5E3+-+6x%5E2+%2B+x+%2B+6+=+0 <===== As the polynomial's LARGEST exponent is 3, there will be 3 solutions!!

Using the RATIONAL ROOT THEOREM, we find that 2 is a solution/zero of the above trinomial, so x = 2, or x - 2 = 0.
Hence, x - 2 is a factor of the polynomial.

Using SYNTHETIC DIVISION, or LONG DIVISION of POLYNOMIALS, the other factor of the polynomial is the quadratic, 2x%5E2+-+2x+-+3, so the factors of 2x%5E3+-+6x%5E2+%2B+x+%2B+6 are: %28x+-+2%29%282x%5E2+-+2x+-+3%29.
As 2x%5E2+-+2x+-+3 CANNOT be factored with INTEGERS, its solutions/zeroes can be found, either by COMPLETING the SQUARE
or using the QUADRATIC EQUATION formula. Using the latter, we get: 
2x%5E2+-+2x+-+3+=+0
x+=+%28-+b+%2B-+sqrt%28b%5E2+-+4ac%29%29%2F%282a%29 <==== QUADRATIC EQUATION formula, where: matrix%283%2C1%2C+a+=+2%2C+b+=+-+2%2C+c+=+-+3%29
x+=+%28-+-+2+%2B-+sqrt%28%28-+2%29%5E2+-+4%282%29%28-+3%29%29%29%2F%282a%29

x+=+%282+%2B-+sqrt%284+%2B+24%29%29%2F2%282%29      x+=+%282+%2B-+sqrt%2828%29%29%2F4          x+=+%282+%2B-+sqrt%284+%2A+7%29%29%2F4           x+=+%282+%2B-+sqrt%284%29sqrt%287%29%29%2F4

x+=+%282+%2B-+2sqrt%287%29%29%2F4          x+=+%282%281+%2B-+sqrt%287%29%29%29%2F2%282%29        x+=+%28cross%282%29%281+%2B-+sqrt%287%29%29%29%2F2cross%28%282%29%29         x+=+%281+%2B-+sqrt%287%29%29%2F2 

The 3 solutions/zeroes (1 RATIONAL and 2 IRRATIONAL): highlight_green%28x%5B1%5D+=+2%29  ;  highlight_green%28x%5B2%5D+=+%281+%2B+sqrt%287%29%29%2F2%29  ;  highlight_green%28x%5B3%5D+=+%281+-+sqrt%287%29%29%2F2%29