... y 2 )in the factored form (x+y)(x 2 y),where y = 2. Or, you can multiply the two binomials in Column A, and thensimplify: (x +2) (x 2 2) = x 2 +2x 2 2x 2 4=x 2 2 4. Since x 2 2 4 , x 2 2 2, Quantity ... SetR =25 n + 25 = 25 (2) + 25 = 75. Given n = 2, the 24 th term of Set S = n +23 =2+ 23= 25 , and two times that 24 th term is50.11. The correct answer is (C). There’sno need to calculate either ... farmhouse C, the extension is 3kilometers long. The triangle’sheight is 4 kilometers (3 2 +4 2 =5 2 ,by the Pythagorean theorem).Accordingly, the area of triangle ABC=1 2 3 7 3 4=14km 2 .answerspracticetest2Practice...