Pre-AlgebraChallenge SharePre-Algebra · Challenge problemEvaluate 452−442+432−422+⋯+32−22+1245^2-44^2+43^2-42^2+\cdots+3^2-2^2+1^2452−442+432−422+⋯+32−22+12.Check Show answer Walk through it step by step Practice more like this