Question

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

Answer 1

Answer:

-10  and 9

Step-by-step 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

Answer:

9.48683298051

Step-by-step explanation:

square root