Perform the operation indicated.(-8n3 + 2n2 + 6) - (-12n3 - 8n2 - 2n)
A. -20n3 - 6n2 - 2n + 6
B. -33n3 + 6n2 + 2n - 6
C. 4n3 + 10n2 + 2n + 6
D. -34n3 - 10n2 - 2n - 6
Answer: C
Mathematics
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Use the method of undetermined coefficients to solve the differential equation.3
- 13
+ 4y = xe-2x; 
= - 
and y = 
when x = 0
A. y = 
e4x - 
ex/3 - 
xe-2x + 
e-2x
B. y = 
e4x + 
ex/3 + 
xe-2x + 
e-2x
C. y = 
e4x - 
ex/3 + 
xe-2x + 
e-2x
D. y = 
e4x - 
ex/3 + 
xe-2x + 
e-2x
Mathematics
Express the number in scientific notation.0.0000004
A. 4 × 10-6 B. 4 × 10-8 C. 4 × 10-7 D. 4 × 10-9
Mathematics
Solve the problem.Find the difference between (2n6 - 8n3 - 4) and (-19n3 + 5n6 + 13).
A. -3n6 + 11n3 - 17 B. -9n9 C. -3n6 + 11n3 + 9 D. -3n6 - 3n3 + 9
Mathematics
Express the number in scientific notation.5,632,000
A. 5.632 × 105 B. 5.632 × 10-5 C. 5.632 × 10-6 D. 5.632 × 106
Mathematics