Question

Find a number such that if 25,7 and 1 are added to it, the product of the first and the third results is equal to the square of the second.

Answer 1

Answer:

The number is 2

Step-by-step explanation:

let the number be x

(25 + x) × (1+x) = (7+x) ^2

25 + 25x + x + x^2 = 49 + x^2 + 14x

25 + 26x = 49 + 14 x

12x = 24

x = 2