fill in the blank to show the correct factored form each polynomial. the answer choices may be used more than once or not at all.
x^2-3x-10=(x- _)(x+(_)
3x^2-6x+9=(_ ) (x^2-2x+3)
9x^2-25=(3x- _)(_+5)
1, 2, 3, 5, 10, 3x, 9x
x^2-3x-10=(x-5)(x+2)
3x^2-6x+9= (3)(x^2-2x+3)
9x^2-25=(3x-5)(3x+5)