Factor completely. If the polynomial cannot be factored, say it is prime.15z2 + 8z - 16
A. (15z + 4)(z - 4)
B. (3z - 4)(5z + 4)
C. prime
D. (3z + 4)(5z - 4)
Answer: D
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Find the series' radius of convergence.
A. 0 B. ?, for all x C. 1 D. 2
Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.Two angles are supplementary if the sum of their measures is 180°. The measure of the first angle is 6° more than two times the second angle. Find the measure of each angle.
A. first angle = 58° second angle = 122° B. first angle = 124° second angle = 56° C. first angle = 56° second angle = 124° D. first angle = 122° second angle = 58°
Use the rational zero theorem, Descartes's rule of signs, and the theorem on bounds as aids in finding all real and imaginary roots to the equation.x3 + 4x2 + 9x + 36 = 0
A. -
, multiplicity 2; 3i
B. -4, 36i, 9i
C. -4, -3i, 3i
D. -4, -
, multiplicity 2
Find the indicated term of the binomial expansion.5th term; (4x + 4)5
A. 1280x B. 5120 C. 5120x D. 5120x2