UPSKILL MATH PLUS
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Learn more1. Show that \((m - n)^2 + (m + n)^2 = 2(m^2 + n^2)\).
2. Show that \((x + 2y)^2 - (x - 2y)^2 = 8xy\).
Important!
This is a self-assessment task. Solve this question and assess the solution steps after completing the test on your own.
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