Question

Find a positive number that equals 90 when added to its square

Answer 1

Check for 9..

Answer 2

x+x^2=90

Answer 3

is that the answer? @myko

Answer 4

no

Answer 5

solve this equation

Answer 6

x^2+x-90=0

Answer 7

Factors can be 10 and 9..

Answer 8

like @waterineyes said, put it in this form (x+10)(x-9)=0
so x=-10, and x=9
since the problem sais it has to be positive, it means x=9 is your answer