Q. 19 C4.5( 19 Votes )

Solve the followi

Answer :

Let us solve the above equation by equating it to zero,



x2 - 1 = 3x


x2 – 3x - 1 = 0


These problems cannot be solved by normal factorization as it do not contain normal factors.


There is one formula developed by Shridharacharya to determine the roots of a quadratic equation which is as follows:



Before putting the values in the formula let us check the nature of roots by b2 – 4ac >0


(-3)2 – (4 × 1 × -1)


9 + 4


13


Since b2 – 4ac = 13 the roots are real and distinct.


Now let us put the values in the above formula





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