Factor the polynomial completely. If a polynomial cannot be factored, state that it is irreducible.x3 + 14x2 + 49x
A. x2(x + 7)2
B. x(x + 7)2
C. x(x - 7)2
D. irreducible
Answer: B
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Solve the problem.A tower is 618 meters high, and it has an observation deck at the 343-meter level. How far from the top of the tower must a 618-meter-high helicopter be in order that the angle subtended at the helicopter by the part of the tower above the deck equals the angle subtended by the part of the tower below the deck?
A. 829 m B. 18 m C. 1034 m D. 91 m
Solve the problem.Find the derivative of the function 
at the point 
in the direction in which the function increases most rapidly.
A. 
B. 
C. 
D. 
Simplify using the power-to-power rule.[(-3)4]3
A. 531,441 B. -531,441 C. 2187 D. -2187
Solve the equation by using the square root property. Express any complex numbers using i notation.7x2 + 14 = 6x2
A. x = -7
B. x = i
C. x = ± i
D. x = 196