Perform the indicated operation.[ (5x2 + 2x + 7) - (2x2 - 3x - 3) ] - [ (3x2 + 4x - 6) + (-2x2 - 3x + 4) ]
A. 6x2 - 2x + 6
B. -2x2 - 2x + 20
C. 2x2 + 4x + 12
D. 2x2 - 2x + 12
Answer: C
Mathematics
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2
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What rainfall produces 100 million mosquitoes?
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Perform the matrix multiplication.
A. 
B. Not defined
C. 
D. 
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Mathematics