Sum of cubes: (a + b)(a2 – ab + b2) = a3 + b3 difference of cubes: (a – b)(a2 + ab + b2) = a3 – b3 which products result in a sum or difference of cubes? check all that apply. (x – 4)(x2 + 4x – 16) (x – 1)(x2 – x + 1) (x – 1)(x2 + x + 1) (x + 1)( + x – 1) (x + 4)(x2 – 4x + 16) (x + 4)(x2 + 4x + 16)

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Evaluate cos2θ for cosθ = square root of 3/2

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p.mc) knowing that it is going to rain tomorrow, and going to bed before 9 p.md) knowing that you have a test in school tomorrow, and studying thw night before