笨蛋中 asked in 科學數學 · 1 decade ago

數學公式解-b±√b平方-4ac/2a的英文是....

我個人很好奇數學公式解:-b±√b2-4ac--------2a英文為何?因為大都不會所以用20點來號招各路英雄

Update:

對不起我要的是式子的英文

6 Answers

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  • Anonymous
    1 decade ago
    Favorite Answer

    minus b plus or minus root b square minus four ac divided by two a.

    像在4ac的地方,我們並不會強調是a times c, 因為口語化的說法就是直接一起唸過去. 此外, 這個公式在數學中長用到,只要這樣唸的話大家都會了解了~~

    Source(s): 天天都會唸到這個英文版的我 =)
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  • 1 decade ago

    這個式子稱作Quadratic Formula

    詳細的說明請參閱參考資料。

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  • 1 decade ago

    Negative B plus or minus squart root of B squart take four A C over two A

    2006-05-16 10:03:56 補充:

    這是較為口語ㄉ

    Source(s): 我是澳洲大學ㄉ數學系學生
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  • 1 decade ago

    negative b add or deduct square root of b square deduct four a c over two a

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  • 宏誌
    Lv 5
    1 decade ago

    (minus b add or minus power (b square minus 4ac) )divided 2a

    照翻的…

    不確定對…哈哈

    2006-05-16 02:07:48 補充:

    開根號打錯了…重打一次…(minus b add or minus the square root of b to 2nd power and minus 4ac) and divided by 2a

    2006-05-16 02:10:19 補充:

    這是知識上烈之痕大大所說補充的:--------------------------------------------------------加的英文= Plus (2+3... two plus three)減的英文= Minus (5-3... five minus three) 乘的英文= times (3x2.... three times two)除的英文= divide by (10*5... ten divide by five)正數-plus負數-minus平方-square

    2006-05-16 02:10:57 補充:

    除也可以說成over

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  • 1 decade ago

    你說的應該是英文代表什麼ㄅ!這是一元二次方程式的公式解

    舉個例子x平方+2x+1=0

    可以看成1乘以X平方+2x+1=0

    X前面的數字叫做係數,X平方的細數就是1而X一次方的細數就是2,剩下的那個+1的1就叫做常數

    你的式子中的a就是X平方的係數,b就是X一次方的係數

    然而c就是常數

    帶入式子解看看就知道了

    Source(s): 自己
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