Perform the indicated operations. [(7x8 + 11) - (- 9x6 + 8x2 )] - [(13x8 - 3x4 + 8x) + (7x2 - 8x- 6)]
A. 6x8 + 9x6 + 3x4 - 15x2 + 17
B. -6x8 + 9x6 - 3x4 - 15x2 + 17
C. 6x8 + 9x6 - 3x4 - 15x2 + 17
D. -6x8 + 9x6 + 3x4 - 15x2 + 17
Answer: D
Mathematics
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Factor the trinomial completely, or state that the trinomial is prime.-40x3 - 150x2 - 125x
A. -5(4x2 + 5)(2x + 5) B. x(-20x - 25)(2x + 5) C. -5x(4x + 5)(2x + 5) D. x(4x + 5)(-10x - 25)
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Classify the following number as rational or irrational.
- 
A. Irrational B. Rational
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Express the sum or difference as a product of sines and/or cosines.sin(4?) - sin(2?)
A. sin ? cos(3?) B. 2 sin(3?) cos ? C. 2 sin ? cos(3?) D. sin(3?) cos ?
Mathematics
Solve the equation on the interval [0, 2?).sin 4x = 
A. 0, 
, ?
B. 0
C. 
, 
D. 
, 
, 
, 
, 
, 
, 
, 
Mathematics