Question

by facterization method 1)x2+2x-5=0​

Answer 1

${x}^{2} + 2x - 5 = 0$

$\blue { \boxed{\bf roots = \frac{ - b± \sqrt{ {b}^{2} - 4ac } }{2a} }}$

$x = \frac{ - (2)± \sqrt{ {(2)}^{2} - 4(1)( - 5) } }{2(1)}$

$x = \frac{ - 2± \sqrt{ 4 + 20 } }{2}$

$x = \frac{ - 2± \sqrt{ 24 } }{2}$

$x = \frac{ - 2± 2\sqrt{ 6 } }{2}$

$\orange{ \therefore x = - 1± \sqrt{ 6 } }$

HOPE THIS HELPS!!