If alpha and beta are the zeros of the quadratic polynomial f(x)=x^2-5x+4. find the value of 1/alpha+1/beta-2 alphabeta
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let alpha = a and beta = b
a+b = 5 and ab = 4
1/a + 1/b - 2ab= (a+b)/ab - 2ab
= 5/4 - 8= -27/5
Hope this helps
a+b = 5 and ab = 4
1/a + 1/b - 2ab= (a+b)/ab - 2ab
= 5/4 - 8= -27/5
Hope this helps
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