15k^3 - 2k^2 - k 36. a^2b^2 - a^2 Factor each polynomial, if possible. If the polynomial cannot be...

35. 15k^3 - 2k^2 - k
36. a^2b^2 - a^2
Factor each polynomial, if possible. If the polynomial cannot be factored, write prime.
25. 4k^2 - 100
26. 9x^2 - 3x - 20
27. x^2 + 6x - 9
28. 50g^2 + 40g + 8
29. 9t^3 + 66t^2 - 48t
30. 4a^2 - 36b^2
31. 20n^2 + 34n + 6
32. 5y^2 - 90
33. 24x^3 - 78x^2 + 45x
34. 18y^2 - 48y + 32
35. 90g - 27g^2 - 75
36. 45c^2 - 32cd
37. 4a^3 + 3a^2b + 8a + 6b^2
38. 5a^2 + 7a + 6b^2 - 4b
39. x^3y^2 - y^2 - z^2 + x^2z^2
40. 4m^4n + 6m^3n - 16m^2n^2 - 24mn^2
7) 27m^3 - 125
8) x^3 - 64