Question

sum of number and its square is 10 times that of number​

Answer 1

Answer:

9 is the answer.

Step-by-step explanation:

let the number be x

then the number and its square is ten times the number

so

x+x^2=10x

x^2= 10x-x

x^2= 9x

x^2-9x = 0

x(x-9)=0

x=0 x=9

9 is the answer

9+9^2=90 which is ten times 9