Question

Pls ans it is imp!!!!

A man’s age after 15 years will be the square of his age 15 years ago. Find
the age using completing the square method.

Answer 1

Step-by-step explanation:

(x+15)=(x-15)^2

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

=>x^2-31x+210=0

=>x^2-10x-21x+210=0

=>(x-10)(x-21)=0

=>x=10,21

since 10-15 is negative then answer is 21 hope it helps