Please show work

11. [a] Solve the polynomial inequality: -3(x 1020: + 8)(x 12) > 0 Give your answer in interval notation. (b) Solve the following inequality: 12'9\"\" a 0 . . Z+14z+49 Give your answer in interval notation. 12. Q (3) Write as a single logarithm. Assume all variables are positive. log2(4-) + Slogz(b) - log2(11) = (b) [5 points] Expand as a sum and/or difference of logarithms exponents of 1. \"'8 712')