Question

A man's after 15 years will be the square of his age 15 years ago.find the age

Answer 1

Answer:

21

Step-by-step explanation:

(x-15)^2=x+15

x^2-30x+225=x+15

x^2-31x+210=0

x=10 or 21

obviously 10 will not b the ans ,hence x=21