Question

Pls help me
the 2nd one ​

Answer 1

Answer:

use

$(x {}^{2} - ( \alpha + \beta )x - \alpha \beta )$

where

$( \alpha + \beta )$

is 1/3

$\alpha \beta$

is 1/6

Answer 2

Answer:

$we \: know \: if \: the \: roots \: are \: equal \\ {b}^{2} - 4ac = 0 \\ here \\ \: \: {m }^{2} - 4.1.9 = 0 \\ \: \: {m}^{2} - 36 = 0 \\ \: \: {m}^{2} = 36 \\ \: \: m = 6$