Find the real zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero.f(x) = 2(x 2 + 4)(x – 2) 2

Find the limit of the function by using direct substitution.(6 points)  

Eliminate the parameter.x = t, y = 3t3 – 1   (5 points)

Solve the equation on the interval [0, 2π).2 cos 2 x + sin x – 2 = 0

If a certain DNA has 23% of nitrogenous base A.  Calculate the % of other three bases.        

Find a • b. a = 5i + 7j, b = -4i + 3j (5 points)  

f(x) = 3x + 5, g(x) = 6×2 Find (fg)(x). (5 points)

Given 2 is a zero of the polynomial, find all the zeros of the function.f(x) = 2x 3 – 11x 2 + 10x + 8

Find the equivalent expression. ​ (cosβ – 1)(cosβ + 1) ​

Which of the following would be considered a red flag that requires more investigation in a patient assessment?