Question 156843
x(x+2)=4(x+x+2)-1
x^2+2x=4(2x+2)-1
x^2+2x=8x+8-1
x^2+2x-8x-8+1=0
x^2-6x-7=0
(x-7)(x+1)=0
x-7=0
x=7 for the smaller integer.
7=2=9 for the larger integer.
Proof:
7*9=4(7+9)-1
63=4*16-1
63=64-1
63=63