evaluate: 3^2-2*4/-30+2*4^2?

[匿名]

2008-07-04 5:52 pm

回答 (3)

[匿名]

2008-07-04 6:01 pm

✔ 最佳答案

(3^2-2*4)/(-30+2*4^2)
=(9-8)/(-30+2*16)
=(1)/(-30+32)
=(1)/(2)
=0.5

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norman

2008-07-04 6:03 pm

(9-8)/(-30+32)
=1/2

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An ESL Learner

2008-07-04 5:56 pm

(3^2 - 2 x 4)/(-30 + 2 x 4^2)
= (9 - 8)/(-30 + 32)
= 1/2 (0.5)

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