Simplify. Write your answer in the form a + bi, where a and b are real numbers.Let w = 8 + 5i. Find w2.

A. 89 - 80i
B. 39 + 80i
C. 89 + 80i
D. 39 - 80i


Answer: B

Mathematics

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Factor the difference of squares.64k2 - 169m2

A. (64k + m)(k - 169m)  B. (8k + 13m)(8k - 13m)  C. (8k + 13m)2 D. (8k - 13m)2

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Place the correct symbol (<, >, or =) between the pair of real numbers. -( -9 ) -9.

A) - (-9 ) < -9 B) - (-9 ) > -9 C) - (-9 ) = -9

Mathematics

Find the domain of the composite function f ? g.f(x) = ; g(x) = x + 10

A. {x 
B. {x 
C. {x 
D. {x 

Mathematics