Algebra Tricks, Number Algebra, Simplifying Expressions, Finding the Unknown
The Escher Mobius Strip
Sum Patterns, Squares and Roots, Fractional Powers, Decimals to Fractions
Posting here because I couldn't find a week 2 challenge subcategory.
Anyways, for question 10 when you square (a+b)/2 the bottom doesn't appear to be squared until the next step(4ab).
Two Variables, Many Variables, Factoring Quadratics, Quadratic Formula
@divinedolphin Oh I see what you mean! The link was outdated because it pointed to a lesson from Module 4 that pre-dated the new Module 4 revision lessons. I've fixed this now. Thank you so much for all of your help!
Coordinating Locations, Intersecting Lines, Coordinate Geometry, Slope of a Curve
The iv choice is missing?
@debbie Okay, thank you!