Question

8.The sum of a number and square of the number gives 42. Find the number?

Answer 1

Answer:

Step-by-step explanation:

As per the question,

we get, x + x² = 42

x² + x - 42 = 0

Solve this equation

a = 1

b = 1

c = -42

    &      

      &          

x = -7  and 6

Avoid '-'ve values

So ,x = 6

6 + 36 = 42