Expand (x+2y-4)(x-2y-4)
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Hello freind
Here is ur answer......
[tex](x + 2y - 4)(x - 2y - 4) \\ x(x - 2y - 4) + 2y(x - 2y - 4) - 4(x - 2y - 1) \\ {x}^{2} - 2xy - 4x + 2xy - 4 {y}^{2} - 8y - 4x + 8y + 4 \\ {x}^{2} - 8x - 4 {y}^{2} + 8y + 4[/tex]
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hope it helps
maek as BRAINLIEST