B. If the problem to be factored is a binomial, see if it fits one of the following situations. • Difference of two squares: 9x2 + 25y2 = (3x+5y) (3x - 5y) Sum of two squares: a2 + b2 does not factor (it is prime) Sum of two cubes: a3 + b3 = (a+b) (a2 - ab + b2 ) Difference of two cubes a3 - b3 = (a - b) (a2 + ab +b2 ) If none of these occur, the binomial does not factor. Factor, write prime if prime. 6.) x2 - 1 7.) x2 - 9 8.) x2 - 25 9.) y3 + 8​