Which of the following are zeros of the function P(x) = 4x4 + 8x3 - 7x2 - 21x - 9.

(1+/- sqr rt of 3) / 2
(1+/- sqr rt of 5) / 2
(1+/- sqr rt of 7) / 2
3/2

Determine if the solution set for the system of equations shown is the empty set, contains one point or is infinite. x + y = 5 x + y = 7 {} 1 solution infinite

Which statement is true about the extreme value of the given quadratic equation? a. the equation has a maximum value with a y-coordinate of -21. b. the equation has a maximum value with a y-coordinate of -27. c. the equation has a minimum value with a y-coordinate of -21. d. the equation has a minimum value with a y-coordinate of -27.

Use the second shift theorem to find the inverse laplace transform of (e^−3s) / (s^2 + 2s − 3)