Factor by grouping.10x2 + 8xy + 15xy + 12y2
A. (2x + 3y)(5x + 4y)
B. (10x + 3y)(x + 4y)
C. (2x - 3y)(5x + 4y)
D. (2x + 3)(5x + 4)
Answer: A
Mathematics
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Integrate the function.
dx
A. 
ln 
- 
+ C
B. x + ln 
+ 
+ C
C. 
ln 
- sin-1 
+ C
D. ln 
+ 
+ C
Mathematics
Name the curve with the given polar equation. If it is a conic, give its eccentricity.r = 
A. Horizontal line passing through (0, 32) B. Circle of radius 16 and center (0, 16) C. Vertical line passing through (32, 0) D. Circle of radius 16 and center (16, 0)
Mathematics
Evaluate the expression.-73
A. 21 B. -21 C. -343 D. 343
Mathematics
Solve using the quadratic formula. Round any answers to two decimal places.
x2 - 2
x = 3
A. {-0.82, 14.67} B. {0.21, -14.67} C. {0.82, -14.67} D. {-0.21, 14.67}
Mathematics