Question

solve this quadratic equation:x²- 5x- 10=0 using the eqn.​

Answer 1

Answer:

$\: \: \: \: {x}^{2} - 5x - 10 = 0 \\ a = 1 \: b = - 5 \: c = - 10 \\ by \: shreedhar \: law \\ \: \: \: \: \: \: \: \: x = \frac{ - b \binom{ + }{ - } \sqrt{ {b}^{2} - 4ac} }{2a} \\ = > x = \frac{ - ( - 5) \binom{ + }{ - } \sqrt{ {( - 5) \: }^{2} - 4.1. - 10} }{2 \times 1} \\ = > x = \frac{5 \binom{ + }{ - } \sqrt{25 + 40} }{2} \\ = > x = \frac{5 \binom{ + }{ - } \sqrt{65} }{2}$

now

x=(5+√65)/2 and. (5-√65)/2