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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