i m not able to under standing the methods of completing the square........ can u plz tell me a easy method to do these square equtions???????

Asked by shashwat singhal | 1st Oct, 2010, 12:00: AM

Expert Answer:

dear student,
here is your answer.
consider the polynomial
9x2 -12x
if we have to complete the square,
let us assume that the thid term is c2
so the polynomial after completing the square will be 9x2-12x+c2
 so the middle term must be
2(3x)(c)
so
6xc=-12x
c=-2
so the  polynomial with completed square is
9x2-12x+4
=(3x-2)2
hope this clarifies your doubt.
regards,
team topperlearning

Answered by  | 1st Oct, 2010, 07:25: PM

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