Factor completely 10x5 + 4x4 + 8x3.
prime
2(5x5 + 2x4 + 4x3)
2x3(5x2 + 2x + 4)
2x(5x4 + 2x3 + 4x2)

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0

Extra points! find the missing dimension! need asap

Consider the sequence below. 3 , 1 , 1/3 , 1/9 , select the explicit function which defines the sequence.