Solve the equation and express the solution in exact form.log2 x2 = (log2 x)2
A. {1, 2}
B. {0, 2}
C. {1, 4}
D. {4}
Answer: C
Mathematics
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Factor completely.x2 + 5xy - 14y2
A. (x - 7y)(x + y) B. (x - 7y)(x + 2y) C. (x - y)(x + 2y) D. (x + 7y)(x - 2y)
Mathematics
Solve the problem.Find the equation for the tangent plane to the surface 
at the point 
A. z = 0 B. x + y + z = 0 C. x - y = 0 D. x + y = 0
Mathematics
Find the equation of the parabola satisfying the given conditions. The vertex is at the origin.Focus (-7, 0)
A. y = - 
x2
B. x2 = -28y
C. y2 = -28x
D. y = -28x2
Mathematics
(-9 + x)(5x + 8)
A. x2 - 37x - 37 B. 5x2 - 38x - 72 C. 5x2 - 37x - 72 D. 5x2 - 72x - 37
Mathematics