Solve the equation by making an appropriate substitution.x4 - 13x2 + 36 = 0

A. {-2, 2, -3, 3}
B. {-2i, 2i, -3i, 3i}
C. {2, 3}
D. {4, 9}

Answer: A

Mathematics

You might also like to view...

Parametric equations and and a parameter interval for the motion of a particle in the xy-plane are given. Identify the particle's path by finding a Cartesian equation for it. Graph the Cartesian equation. Indicate the portion of the graph traced by the particle and the direction of motion.x = 49t2, y = 7t, -? ? t ? ?

A. y = x²; Entire parabola, left to right (from
2nd quadrant to origin to 1st quadrant)

B. y = x²; Entire parabola, right to left (from
1st quadrant to origin to 2nd quadrant)

C. x = y²; Entire parabola, bottom to top (from
4th quadrant to origin to 1st quadrant)

D. x = y²; Entire parabola, top to bottom (from
1st quadrant to origin to 4th quadrant)