1. None are correct it would be either 1/3, 2/6, 3/9, 4/12, 5/15
2.B
3.C
4.C
D -9 because it has a -3 and its going to be the same - sign
2x² - 128
2(x² - 64), but (x² - 64) = x² - 8² (difference of 2 squares),[a²-b²=(a-b)(a+b)]
2(x² - 64) = 2(x² - 8²) = 2(x-8)(x+8)
1 2/3 = 5/3
4 2/5 = 22/5
5/3•22/5= 110/15
= 22/3
