Question

find the roots of √2x^2+7x+5√2=0
please give dull explanation s
and by quadratic roots formula
please please please
thanks

Answer 1

Discriminent = b^2 - 4ac

D = 7^2 - 4(root2)(5root2)

D = 49 - 40

D = 9

$\alpha = \frac{ - b + \sqrt{ d } }{2a} \\ \\ \alpha = \frac{ - 7 + \sqrt{9} }{2 \sqrt{2} } \\ \\ \alpha = \frac{ - 7 + 3}{2 \sqrt{2} } \\ \\ \alpha = \frac{ - 4}{2 \sqrt{2} } \\ \\ \alpha = - \sqrt{2}$

$\beta = \frac{ - 7 - 3}{2 \sqrt{2} } \\ \\ \beta = \frac{ -10 }{2 \sqrt{2} } \\ \\ \beta = \frac{ - 5}{ \sqrt{2} }$

Answer 2

Hello friend ......☺

Here is your solution......☺

Thanks...☺