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FInd 1/(a - 1) + 1/(b - 1) if a and b are the roots of the equation 2x^2 - 7x + 2 = 11x - 15.

 Jul 24, 2021
 #1
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Here is one way....I do not know if it is the BEST way:

 

2x^2 -18x+17 = 0    quadratic formula says roots are   9/2 +- sqrt (47)/2         can you take it from here ?

 Jul 24, 2021

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