maths f.2 easy

🎓 學業台教學

2007-10-09 4:03 am

1) 6-(x-5)x-4x=??????

回答 (3)

2007-10-09 4:09 am

✔ 最佳答案

6-(x-5)x-4x

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

=6-X^2+X

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2007-10-09 4:18 am

6-x^2+5x-4x
-x^2+x=-6

參考: me

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2007-10-09 4:12 am

6-(x-5)x-4x
=6-(x*-5x)-4x
=6-x*+5x-4x
=6-x*+x

x*=x square

參考: me

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