Question

Time sensitive question... Pleaseeee help!!

Answer 1

Here is your answer

d) $r2= -5-\sqrt{5}$

REASON:

Equation is-

$2{x}^{2}+8x+c=0$

Here,

a= 2; b= 8 and c=c

Now,

$r1+r2= -b/a$

[Relation used: sum of zeroes=
-coefficient of x/ coefficient of x^2]

So,

$1+\sqrt{5} + r2= -8/2$

$1+\sqrt{5} + r2= -4$

$r2= -4-1-\sqrt{5}$

$r2= -5-\sqrt{5}$

HOPE IT IS USEFUL