How is y solved for in this equation?
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Multiply both sides of the equation by , then isolate . The rest will follow.
Last edited by wonderboy1953; Jul 16th 2010 at 12:32 PM. Reason: correction
Did you make a typo in that formula?
Yes, should be multiplying both sides by
synthetically divide: add 1: multiply by that denominator and divide by x+1: subtract 1: find common denominator and add: square both sides: factor out -1 from numerator: distribute ^2: -1*-1 = 1:
Originally Posted by Mike9182 Another way: x(1 + SQRT[y]) = 1 - SQRT[y] x + xSQRT[y] = 1 - SQRT[y] xSQRT[y] + SQRT[y] = 1 - x SQRT[y](x + 1) = -1(x - 1) SQRT[y] / -1 = (x - 1) / (x + 1) y = [(x - 1) / (x + 1)]^2
Hello : 1005 and wilmer you have one solution but (1-x)/(1+x)>= 0
Originally Posted by dhiab Hello : 1005 and wilmer you have one solution but (1-x)/(1+x)>= 0 Hmmm....isn't all that's required: x <> -1 ?
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