Question

plz solve this .....of oh yeh maths ....

Answer 1

Hey sista!
It is not possible to determine because they are imaginary. When we solve, we get quadratic equation by applying formulae, no real roots exist.

Let the ages be x and y,
so x+y=20.......(i)
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 EQN (I) ..

x+y=20
144/y+y=20
144+y²=20y
y²-20y+144=0
which is impossible to be solved, so it is impossible.

BTW u have a good handwriting.
Hope it helps you!