Find the product and write the result in standard form.(1 + 4i)2
A. 1 + 8i + 16i2
B. -15
C. 17 + 8i
D. -15 + 8i
Answer: D
Mathematics
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A. 
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Combine like terms.12 - 10.9x - 12.6x + 11.1
A. -23.5x + 0.9 B. -0.4x C. -23.5x + 23.1 D. -24.5x + 23.1
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Compute the integral.
?
?
A. 
B. ?
C. 
D. 
E. 
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Solve the system of equations by Gaussian elimination.
A. {(0, 0, 4)} B. {(0, 4, -4)} C. {(0, 4, 0)} D. ?
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