Solve by completing the square.x2 = 7 - 4x
A. -2 ± 2
B. 2 + 
C. -1 ± 
D. -2 ± 
Answer: D
Mathematics
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Combine like terms.-9y3 + 6y3
A. 3y3 B. 3y6 C. -3y6 D. -3y3
Mathematics
Identify the vertex of the parabola.P(x) = -2x2 - 16x - 38
A. (-6, -4) B. (4, 6) C. (6, 4) D. (-4, -6)
Mathematics
Identify the axis of symmetry of the parabola.y = 7x2 - 70x + 183
A. x = -8 B. x = 5 C. x = 0 D. x = 8
Mathematics
Convert the rectangular coordinates of the point to polar coordinates (r, ?) with r > 0 and 0 ? ? < 2?.(-2
, 2)
A. 
B. 
C. 
D. 
Mathematics