Answer: Bob bought 5 adults tickets and 3 children tickets.
Step-by-step explanation: If Bob have 8 person with him and he has 5 adults and 3 kids he multiply 5 by 10 which equal 50 and he multiply 3 by 3 which equal 9 and he add them together which equal 59.
You would distribute the 2x to the x and 1= 2x^2+2x then you would distribute the 1 to the x and 1= 1x+1 then you would add it all together to get 2x^2+3x+1