The sum of the ages of two friends is 20 years. four years ago,the product of their ages in year was 48. is the situation possible? if so,determine their present age?

2
by ruquua
OK u can also write it in that way
i am not understanding
Its ur choice
At the end u can just write that's its not possible bcoz no real roots exist
whos gona brainliest

2015-11-28T19:17:11+05:30
it is not possible to determine because they are imaginary. when we solve we get quadratic equation by applying formulae no real roots exist.
x+y=12
xy=40
by applying (a1/a2)=(b1/b2)≠(c1/c2)
1/1   =1/2      ≠12/40
so they are inconsistent equations and have no solutions
2015-11-28T19:19:19+05:30
Let the ages be x and y
x+y=20---------------(1)
4 years ago......
(x-4)(y-4)=48
xy-4x-4y-16=48
xy-4(x+y)=48+16
xy-4(20)=64
xy=144
x=144/y
substitute in (1)
x+y=20
144/y+y=20
144+y²=20y
y²-20y+144=0
which is impossible to be solved
so, it is impossible
it wrong bro because you should take 4 years ago as x-4,y-4
i want the ans i am not getting the ans so can u help plz