Find all integers b so that x squared +bx- 12

1 answer

if you mean x^2 + bx -12 = 0 then
look at the factors of 12, of opposite signs.
1,-12: (x-1)(x+12) = x^2 + 11x - 12
2,-6: (x-2)(x+6) = ____
and so on down the line.