請幫我化簡多項式

👨🏻‍🏫 學術台數學

kwok wai

2009-11-24 6:15 am

(4X^2-2-X^3+3X)+(5X-9+X^3-6X^2)
=

回答 (3)

sir

2009-11-24 6:17 am

✔ 最佳答案

(4X^2-2-X^3+3X)+(5X-9+X^3-6X^2)

= 4X^2-2-X^3+3X + 5X-9+X^3-6X^2

= -2 - 9 + 3X + 5X + 4X^2 - 6X^2 - X^3 + X^3

= -11 + 8X - 2X^2

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2009-11-24 5:38 pm

(4X^2-2-X^3+3X)+(5X-9+X^3-6X^2)
=4X^2-6X^2 -X^3+X^3 +3X+5X -2-9
=-2X^2+8X-11

參考: 自己想

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小P

2009-11-24 6:18 am

(4X^2-2-X^3+3X)+(5X-9+X^3-6X^2)
= -x^3-2x^2+8x-11

參考: me

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