SOLUTION: a man is x<2 (X square) years old while his son is x years old. In 4X years time ,the man will be twice as old as his son. Form an equation and solve it to find the value of X.

Question 971204: a man is x<2 (X square) years old while his son is x years old. In 4X years time ,the man will be twice as old as his son. Form an equation and solve it to find the value of X.
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39616) (Show Source): You can put this solution on YOUR website!
Please refer now to this request question posting:
http://www.algebra.com/algebra/homework/quadratic/Quadratic_Equations.faq.question.971209.html

--------
Description is poorly written. m for man s for son;
The inequality shown does not make sense. , is what?
and ?
This could be .

Let 4x years pass; then

The only understanding is a system
.

Use m in the inequality.

, a parabola with a minimum for a vertex. The inequality will be true to the left of the lesser root and to the right of the greater root. The polynomial must have two real roots.
Look at the discriminant.
, because the discriminant must be positive.

------------which seems to indicate that the son is ONE YEAR BEFORE BEING BORN.

Write the inequality using this value for s.

Now what are the roots for this polynomial?

We must use the positive, or PLUS form for x.
, in order to satisfy the inequality.

Look carefully at the problem description as it is given to you and write the exact problem description, word for word to be sure you did not mis-state it in the help request. What is shown in your request here seems overly complicated but appeared finally solvable.
Answer by MathTherapy(10551) (Show Source): You can put this solution on YOUR website!

a man is x<2 (X square) years old while his son is x years old. In 4X years time ,the man will be twice as old as his son. Form an equation and solve it to find the value of X.

, with x = X
Why do you have to complicate matters by using x and X? These are different variables, and therefore suggest DIFFERENT values.
RELATED QUESTIONS
A man is 32 years old and his son is 7 years old. In how many years will the father be... (answered by checkley77)
a man is 30 years old and his son is 4 years old,after how many years will the man be... (answered by Earlsdon,richwmiller)
Four years ago a man was 2 and a 1/2 times as old as his son, but in five years time, he... (answered by josgarithmetic,MathTherapy,ikleyn)
A man 42 years old has a son who is 12 years old. In how many years will the father be as (answered by josmiceli)
A man is 25 years older than his son. In 10 years he will be more than twice as old as... (answered by stanbon)
a man is 32 years old while his son is 8 years old,in how many years so that the man will (answered by ewatrrr,Alan3354)
a man is 30 years old and his son is 4 years old after how many year will the man be... (answered by Aadilrashid09@yahoo.com)
a man who is 42 years old has a son of 12 years old. in how many years will the father be (answered by T-Maree,MathTherapy)
a father is three times older than his son. in twelve years, the man will be twice as... (answered by mananth)