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(x2 + 3x + 1)(x2 + x + 2)

User Sosumi
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( x^(2) +3x+1)( x^(2) +x+2) \\ = x^(2) ( x^(2) +x+2)+3x( x^(2) +x+2)+1( x^(2) +x+2) \\ = x^(4)+ x^(3)+2 x^(2) +3 x^(3) +3 x^(2) +6x+ x^(2) +x+2 \\ = x^(4) +4 x^(3) +6 x^(2) +7x+2
User Yesenia
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