Question

What must be added to -1 to get x2

Answer 1

Answer:

let a be added

$- 1 + a = { x }^{2} \\ \\ \rarr \: \pink{ a = {x}^{2} + 1}$

$\pink{▬▬▬▬▬}▬▬▬▬▬\blue{▬▬▬▬▬}▬▬▬▬▬$