Question 415110

2(x+x+2+x+4) = 6x +12

6x+12 = x(x+2) -153

=> 6x + 12 = x^2 +2x -153

=> x^2 +2x-6x -153-12 = 0

=> x^2 - 4x - 165 = 0

=> x^2 -15 x + 11 x -165 =0

=> x(x-15) +11(x -15) = 0

=> (x+11) (x-15) =0

so, x = 15 

nubers are 15,17,and 19.