Algebra Challenge: Evo Guesses Two Numbers
Evo’s ability to guess a pair of numbers selected by a student encourages the student to use logical thinking and algebra to discover Evo’s secret.
Academic Standards: CCSS.MATH.CONTENT.HSA.SSE.A.2
Use the structure of an expression to identify ways to rewrite it. For example, see xâ´ – yâ´ as (x²)² – (y²)², thus recognizing it as a difference of squares that can be factored as (x2 – y2)(x2 + y2).