Question

xy=36
√x+√y=5
срочно пж

Answer 1

y=36/x    √x+√36/x=√x+6/√x=5   √x=z
z+6/z=5   z²-5z+6=0   z1=3   z2=2
√x=3   x=9   y=36/9=4
√x=2   x=4    y=36/4=9