Question

simplify (x+2y-5)^2-(x-2y+5)^2​

Answer 1

Answer:

pls find attachment below

Step-by-step explanation:

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Answer 2

Answer:

$(x + 2y - 5)^2 - (x - 2y + 5)\\Formula: a^2 - b^2 = (a+b)(a-b)\\Here> a = x + 2y - 5, b = x - 2y + 5\\(x + 2y - 5)^2 - (x - 2y + 5) = [(x + 2y - 5)+(x - 2y + 5)][(x + 2y - 5)-(x - 2y + 5)]\\ = [x + 2y - 5 + x - 2y + 5][x + 2y - 5 - x + 2y - 5]\\ = [2x][4y - 25]\\ = 8xy - 50$