Find all real solutions of the equation.
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Fill in the blank(s) with the appropriate word(s).
Answer: 1
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Use the method of undetermined coefficients to solve the differential equation.y'' + 4y' + 4y = x2 - 3x
A. y = C1e-2x + C2e2x + 
x2 - 
x + 
B. y = (C1 + C2x)e-2x + 
x2 - 
x + 
C. y = (C1 + C2x)e-2x + 
x2 + 
x - 
D. y = C1e-2x + C2e2x + 
x2 - 
x - 
Determine any local or absolute extrema as indicated.Use the graph of f to estimate the local extrema.
A. Local maximum: 0; local minima: -2 and 2 B. Local maximum: ?; local minima: -2 and 2 C. No local maximum; local minimum: -4 D. Local maximum: 0; local minimum: -4
Solve the problem.Awards are to be presented to seven people: Jeff, Karen, Lyle, Maria, Norm, Olivia, and Paul. How many different orders are possible for the awards if Karen is to receive the first award and Lyle the last?
A. 840 B. 360 C. 24 D. 120
Solve the system by the Gauss-Jordan method.
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A. 
B. ?
C. ?
D. ?
E. inconsistent