Question

the sum of two numbers is 210. if one number is the square of the other, find the set of numbers.

Answer 1

let one number be x
then another = x^2
and as the question says their sum is 210
so u get
x^2 + x = 210

adding - 210 to both sides we get
x^2 +x - 210 = 0

so try solving this equation to get the value of x

Answer 2

@kedacse : Can you factor gudden's quadratic equation as a first step towars solving it for the values of x?