Name: Squaring a Number Ending in 5. @minkusbc
Uploaded: 2007-12-02T01:29:31-0400
Duration: 8 min 17 s
Description: This video shows how to square a number ending in a 5 quickly AND explains why the trick works.

Constructions Part Two & Why They Work @minkusbc

Uploaded June 2009 | Updated September 2026, 2 days ago

How to construct perpendiculars to and from a line, using only a compass and a straight edge. How to construct regular triangles, squares and hexagons.

Exponential equations with different bases (part 2)

Solving a simple Quadratic Equation, no linear term

Using the Discriminant in a Quadratic Equation

Factoring when a squared sign is on a bracket.