Question

x² + x - 20 = 0 by completing useing square meathod ​

Answer 1

Answer:

Hope you understand it and like it

Answer 2

Step-by-step explanation:

$suppose \: x \: value \: is \: 4 \\ {4}^{2} + 4 - 20 = 0 \\ 16 + 4 - 20 = 0 \\ 20 - 20 = 0 \\ 0 = 0 \\ therefore \: x \: value \: is \: 4$