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In Find the values of a and b from the quadratic equation 2x2 - 5 + 7 = 0 ill) Find X, if fixi = 252 and fi = 420,​

Answer» ONG>Answer:

Given 2x

2

−5x+7=0

The standard QUADRATIC equation is ax

2

+bx+c=0

by COMPARING we GET a=2,b=−5,c=−7

∴ a=2,b=



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