Solve the equation by completing the square.x2 - 4x + 1 = 0
A. {2 + 
, 2 - 
}
B. {-2 + 
}
C. {-2 + 
, -2 - 
}
D. {2 + 
}
Answer: A
Mathematics
You might also like to view...
Find the unit tangent vector of the given curve.r(t) = 4t3i - 3t3j + 12t3k
A. T(t) = 
i - 
j - 
k
B. T(t) = 
i - 
j + 
k
C. T(t) = 
i + 
j + 
k
D. T(t) = 
i - 
j + 
k
Mathematics
Evaluate the function.
?If y = f(x), find f(-2).
A. -1 B. 4 C. 1 D. -4
Mathematics
Solve the system of equations. 2x2 + y2 = 173x2 - 2y2 = -6
A. (1, 3), (-1, -3) B. (2, 3), (2, -3), (-2, 3), (-2, -3) C. (1, 3), (1, -3), (-1, 3), (-1, -3) D. (2, -3), (-2, 3)
Mathematics
Rewrite in logarithmic form.3x = 30
A. log30 x = 3 B. log30 3 = x C. log3 30 = x D. log3 x = 30
Mathematics