How much larger is the sum of 3x²-2x-8 and 4x²+2x-1 than the sum of 5x²-4x and 2x²-13x+4

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

Find the coordinates of point x that lies along the directed line segment from y(-8, 8) to t(-15, -13) and partitions the segment in the ratio of 5: 2.

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).