4. Using algebraic methods, find the solution sets for the following. Give your solutions in interval notation. (A) x^2 − 4 ≥ 0 (B) 2/ x − 1 ≤ −1
5. Solve the following equations algebraically (a) 2^(1+x) = 3^(x+2) (b) log5(2x)+log5(6)=log5(4x)-log3(x)