Question

The sum of a number and its square is 42. Which equation can be used to find the two numbers for which this is

true?
x2 + x = 42
x2 + 2x = 42
x2 + x + 42 = 0
x2 + 2x + 42 = 0

Answer 1

the answer is a

Explanation:

Answer 2

`x^2 + x = 42`

Explanation:

Let the required number be x

Therefore, it's square =
`x^2`

`\therefore \: x + {x}^(2) = 42 \\ \huge \red{ \boxed{{x}^(2) + x = 42}}`