Please solve all to help me study for my exam!! SHOW WORK PLEASE

16) Sketch the graph of each polynomial. 3. f(x) = x4 - 103:2 + 9 b. f(x) = 3x3 - 43:2 c. f(x) = (3::2 '3)(33:2 4x 4) 1?) Perform the operation and write the result in standard form (a + bi). a. (3 + 2)(7 + i) b 2 4 E 3+: 18) Simplify the complex number and write it in standard form (a + bi). 51'" +3:3 + 7:2 : 19) Divide. Express your answer in the form: quotient + M divisor a. (x44x3+x2+10x3)+(x2+4) b. (x31)+(x1) 20) Find all the real zeros of each polynomial function and determine its multiplicity. 3. f(x) = x4 3x2 4 b. f(x) = x3 4x2 + 4x