2021 10FA 1 · AMC 10 Step by Step

AMC 10 Step by Step

2021 AMC Fall 10AProblem 1P1-10~1 minPrint

Algebraic Manipulation Divisibility & Factors Apply an identity: SFFT, sum of squares, difference of cubes, Vieta Set up the equation/formula and compute; no special trick needed

What is the value of $\frac{(2112-2021)^2}{169}$ ?

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Problem © Mathematical Association of America (MAA), American Mathematics Competitions. Reproduced for non-commercial educational use. Solution and commentary are original to this site.