Solve the equation.x(x2 + 2) = 6 + x3
A. {2}
B. {6}
C. 
D. 
Answer: D
Mathematics
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Use the Gauss-Jordan method to find A-1, if it exists.A = 
A. 
B. 
C. 
D. 
Mathematics
Write the sentence as an equation. Let the variable x represent the number.The product of 3 and a number increased by 5 is 27.
A. 3(x + 5) = 27 B. 3x - 5 = 27 C. 15x = 27 D. 3x + 5 = 27
Mathematics
Solve the equation by factoring.x3 = -8x2 - 15x
A. {0, -5, -3} B. {5, 3} C. {0, 5, 3} D. {-5, -3}
Mathematics
Evaluate to four decimal places using a calculator.e-0.909
A. -0.8263 B. 0.4029 C. 0.8263 D. -2.4709
Mathematics