Find the expression that represents the sum of 2i3+5i2-6i and 2i2-3i+8.

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm