Solve the equation using the quadratic formula.2x2 - 3x - 5 = 0

A.
B.
C.
D.

Answer: D

Mathematics

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Find the derivative.y = cos (2x2 + 5)

A. sin (2x2 + 5) B. 4x sin (2x2 + 5) C. -4 sin 2x2 D. -4x sin (2x2 + 5)

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Factor when possible.63x3 +9xy2

A. 9x(7x + y)(7x - y) B. 9x(7x2 + y2) C. x(441x2 +9y2) D. Prime

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Subtract and simplify. Write the answer as a mixed number if possible.19 - 2

A. 16
B. 16
C. 16
D. 17

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Solve the problem.Find the sum of the first 284 positive odd integers.

A. 81,225 B. 80,656 C. 80,089 D. 80,940

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Mathematics