1) x^2 + 4x + 3
2) x^2 + 12x + 11
Factorization
2007-12-25 10:02 pm
回答 (3)
2007-12-25 10:08 pm
✔ 最佳答案
1)(x+3)(x+1)
2)
(x+11)(x+1)
2007-12-25 11:13 pm
1) x^2 + x + 3x +3 = x ( x + 1) + 3 (x++1) = (x + 3) ( x + 1)
2) x^2 + x + 11x + 11 = x ( x +1 ) + 11 ( x + 1) = (x + 11) ( x + 1)
2) x^2 + x + 11x + 11 = x ( x +1 ) + 11 ( x + 1) = (x + 11) ( x + 1)
2007-12-25 10:29 pm
1) ( x+1 )( x+3 )
=x^2+1x+3x+3
=x^2+4x+3
2) ( x+1 )( x+11 )
=x^2+1x+11x+11
=x^2+12x+11
=x^2+1x+3x+3
=x^2+4x+3
2) ( x+1 )( x+11 )
=x^2+1x+11x+11
=x^2+12x+11
收錄日期: 2021-04-13 14:49:13
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https://hk.answers.yahoo.com/question/index?qid=20071225000051KK01493