Question

The sum of a number and its square is 90. Find the number(s)
Quickly Please, thank you

Answer 1

-10 and 9

Explanation:

hello :

let x the number(s) you have this equation : x²+x=90

x²+x-90 =0

(x+10)(x-9) =0

x+10=0 or x-9=0

x= -10 or x=9

Answer 2

9.48683298051

Explanation:

square root