Factor the polynomial completely.21t4 - 91t3 - 70t2
A. 7t2(3t - 2)(t + 5)
B. (21t3 + 14t)(t - 5)
C. t2(3t + 2)(7t - 35)
D. 7t2(3t + 2)(t - 5)
Answer: D
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A. $418 B. $643 C. $305 D. $80
Find the products AB and BA to determine whether B is the multiplicative inverse of A.A = 
,B = 
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Find all solutions in the interval [0, 2?).tan x + sec x = 1
A. x = 
B. No solution
C. x = 
D. x = 0
Use the simplex method to solve the linear programming problem.Maximizez = 9x1 + 8x2subject to:x1 + 2x2 ? 2 3x1 + 2x2 ? 8 2x1 + 3x2 ? 10withx1 ? 0, x2 ? 0
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