Answer :
[tex]x + x^2 = 72[/tex]
[tex]x^2 + x - 72 = 0[/tex]
[tex](x -8)(x+9) = 0[/tex]
[tex]x = -9, 8[/tex]
Greatest Possible Integer: 8
[tex]x^2 + x - 72 = 0[/tex]
[tex](x -8)(x+9) = 0[/tex]
[tex]x = -9, 8[/tex]
Greatest Possible Integer: 8