Factorization

🎓 學業台小學及中學教育

Ida

2007-12-25 10:02 pm

1) x^2 + 4x + 3
2) x^2 + 12x + 11

回答 (3)

but

2007-12-25 10:08 pm

✔ 最佳答案

1)
(x+3)(x+1)
2)
(x+11)(x+1)

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用戶16254

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)

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vicky

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

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