Multiply and simplify.
? 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find all values of x in the interval [0°, 360°) that satisfy the equation. Round approximate answers to the nearest tenth of a degree.cos2 2x - sec2 2x = 0
A. {45°, 135°, 225°, 315°} B. {0°, 45°, 90°, 135°, 180°, 225°, 270°, 315°} C. {0°, 90°, 180°, 270°} D. {0°, 180°}
Mathematics
Multiply.-2x5(-12x6 - 8x5 + 4)
A. 24x11 - 8x5 + 4 B. 24x11 + 16x10 C. 24x6 + 16x5 - 8 D. 24x11 + 16x10 - 8x5
Mathematics
Factor the polynomial.81k2 - 90kp + 25p2 - m2
A. (9k + 5p + m)(9k + 5p - m) B. (9k + 5p + m)(9k - 5p - m) C. (9k - 5p + m)(9k - 5p - m) D. (9k - 5p - m)2
Mathematics
Solve the equation.31 + 2x = 27
A. {-1} B. {1} C. {3} D. {9}
Mathematics