Q. 345.0( 3 Votes )

Solve each of the following quadratic equations:

9x2 + 6x + 1 = 0

Answer :

Using the splitting middle term - the middle term of the general equation is divided in two such values that:

Product = a.c

For the given equation a = 9; b = 6; c = 1

= 9.1 = 9

And either of their sum or difference = b

= 6

Thus the two terms are 3 and 3

Sum = 3 + 3 = 6

Product = 3.3 = 9

Hence the equation has repeated roots

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