Question

solve 15x2-7x-36=0 by using shri dharacharya formula

Answer 1

Answer:

$x = \frac{ - b \frac{ + }{ - } \sqrt{ {b}^{2} - 4ac} }{2a}$

$x = \frac{ - ( 7) \frac{ + }{ - } \sqrt{( { - 7)}^{2} - 4(15)( - 36) } }{2(15)}$

$x = \frac{7\frac{ + }{ - } \sqrt{49 + 2160} }{30}$

$x = \frac{7 \frac{ + }{ - } \sqrt{2209} }{30}$

$x = \frac{7 \frac{ + }{ - } 47}{30}$

$x = \frac{9}{5}$

or

$x = \frac{ - 4}{3}$