Question

3) Delemine whether the values given against each of the quadratic equations are the roots of the
quadratac equation or not.

x2 + 4x - 5=0, x= 1, -1​

Answer 1

Step-by-step explanation:

the present age of the father is four times that of his son . 20 years hence the age of father will be twice the age of the son . find their present ages with explanation