Which expression represents a difference of squares? A. 4x2 − 16x B. t2 + 100 C. 25k − 64 D. 81 − 49y2

Given the points a(-2, 1) and b(8, 6), find the coordinates of the point c on directed line segment ab, that partitions ab in the ration 2: 3.

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t

What is the value of the discrimination for the quadratic equation 0=×2+2+×2