Perform the indicated operations and write the answer in the form 
where a and b are real numbers.(3 + 4i)(8 + 4i)
A. 8 + 44i
B. 40 + 20i
C. 8 - 44i
D. 16i2 + 44i + 24
Answer: A
Mathematics
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Simplify.2(-4)(7 - 5) - 2
A. -14 B. -10 C. 14 D. -18
Mathematics
Find the least common denominator (LCD).
, 
A. x(x - 8)2 B. x(x - 5)(x + 3) C. x(x - 8)(x + 3) D. (x - 8)2
Mathematics
Write the binomial expansion of the expression.(-3m - 3n)4
A. 81m4 + 5184m3n - 2916m2n2 + 324mn3 - 81n4 B. 81m4 + 5184m3n + 2916m2n2 + 324mn3 + 81n4 C. 81m4 + 324m3n + 486m2n2 + 324mn3 + 81n4 D. 81m4 + 324m3n - 486m2n2 + 324mn3 - 81n4
Mathematics
Find the focus and directrix of the parabola with the given equation.11x2 = 36y
A. Focus: 
, directrix: y = - 
B. Focus: 
, directrix: x = - 
C. Focus: 
, directrix: y = 
D. Focus: 
, directrix: y = - 
Mathematics