Assuming all factors are real, factor x4 + y4.
a) (x + y)(x + y)(x - y)
b) (x2 + y2)(x + y)(x - y)
c) (x2 + y2)(x - y)(x - y)
d) cannot be factored in the real number system

Question 5 spring semester final exam math evaluate

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.

Find the equation of the ellipse with the following properties. the ellipse with foci at (0, 6) and (0, -6); y-intercepts (0, 8) and (0, -8).edit: the answer is x^2 over 28 + y^2 over 64 = 1