Select all radical expressions that are equivalent to 435 . a. 64‾‾‾√5 b. 20‾‾‾√3 c. 12‾‾‾√5 d. 43‾‾√5 e. 45‾‾√3 f. (4‾√3)5

Add, subtract, multiply, or divide as indicated. list any restrictions for the variable(s) and simplify the answers when possible. 1) x-2 / x+5 + 3x / 2x-1 2) x+6 / x-6 - x^2 / x+6 3) x+9 / x-4 + x+2 / x^2-11x+28 4) x / x^2-64 + 11 / 2x^2+11x-40 5) 5 / x + 11 / x-3 - x-4 / x^2+2x-15