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Please help me this is my 4th time asking for help with foiling this
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Please help me this is my 4th time asking for help with foiling this

Please help me this is my 4th time asking for help with foiling this-example-1
User Kukabi
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Answer:

Explanation:


(x-2-√(5))(x+2+√(5))\\ \\x^2+2x+x√(5)-2x-4-2√(5)-x√(5)-2√(5)-5\\ \\ x^2-4-2√(5)-2√(5)-5\\ \\ x^2-4√(5)-9

User Stumbler
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