9(a+c)(a-c)-6(b+6c)重新分组分解因式.

xhjoswx886632022-10-04 11:39:542条回答

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小小书童11 共回答了19个问题 | 采纳率100%
原式=9(a²-c²)-(6b+36c)
=9a²-9c²-6b-36c
=3(3a²-3c²-2b-12c)
1年前
ll** 共回答了3164个问题 | 采纳率
原式=9(a²-c²)-(6b+36c)
=9a²-9c²-6b-36c
=3(3a²-3c²-2b-12c)
1年前

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重新提问!英语改错!
one afternoon,i was on my way home ,the weather 1 _ _ _ changed suddenly .dark clouds were gathered .i began 2 _ _ _ to feel worried about because i did' nt have a raincoat or 3 _ _ _ umbrella with me .That soon started to rain .Just as i 4 _ _ _ was hurrying home ,i heard someone called me from 5 _ _ _ behind .i turned to have a look and find that it was Liu 6 _ _ _ Wei ,a neighbor of my .he offered me to share his 7 _ _ _ umbrella .we walked home together happily .without 8 _ _ _ Liu Wei's help ,i would become wet to the skin .9 _ _ _ how thankful i was to his help and kindness 10 _ _ _
一共有十处错误,我已经标明了,希望大家能改正!请见谅!
峥宇1年前1
fxt_1234 共回答了15个问题 | 采纳率86.7%
应该只有九处错误!
1.I前面加上when/while
2.去掉were
3.去掉about
4.That → It
5.called → calling
6.find → found
7.my → mine
8.√(没有错误)
9.would和become之间加入have
10.to → fo
一.重新排列下列句子And what's that?What's this in English?A p
一.重新排列下列句子
And what's that?
What's this in English?
A phone.
Oh,two phones.Thank you.
It's a phone,too.
二.排列句子.
OK.
Let's sing.
Now again.
very good.
Now let's go home.
whjiajia1年前5
楼上一群狗 共回答了16个问题 | 采纳率93.8%
一、
What's this in English?
A phone.
And what's that?
It's a phone,too.
Oh,two phones.Thank you.
二、
Let's sing.
very good.
Now again.
Now let's go home.
重新英语写作基础句子8.Fifty-seven percent of young peoplein the U.S. g
重新英语写作基础句子
8.Fifty-seven percent of young people
in the U.S. graduated,and these young people obtained a Bachelor of Arts degree in fouryears.(sentence with a prepositional phrase)
小猫爱睡觉1年前1
怀色 共回答了22个问题 | 采纳率95.5%
你的意思上把上面那些词按括号里的要求连成一个句子么?如果是,可以这样写:
fifty-seven percent of young people graduated in the U.S.obtained a Bachelor of Arts degree in four years.
别外obtain是这句的动词 如果没有要求,就扫原句的时态就行.graduated做定语
r h o t s重新组词
fairoo1年前1
youjiduizhang007 共回答了20个问题 | 采纳率85%
short 短的
重新排列组成句子eat ice cream let' s the
守望距离1年前7
loveless泉 共回答了4个问题 | 采纳率
lets eat ice cream
字母重新排列ciaftfr组成正确单词
蓝色小王子1年前1
末名飞扬 共回答了19个问题 | 采纳率94.7%
字母重新排列ciaftfr组成正确单词
traffic 交通
sending to friend I'm letter my a now 重新排列
sending to friend I'm letter my a now 重新排列
可以用序号
sending to friend I'm letter my a now
1 2 3 4 5 6 7 8
如:sending=1
caibeatles1年前1
我愿积善 共回答了17个问题 | 采纳率94.1%
为你解答.
I'm sending a letter to my friend now.
我现在正在给我的朋友寄信.
重新组合单词
重新组合单词


rickyuu1年前1
feng_451700 共回答了23个问题 | 采纳率87%
重新排列这些句子.
重新排列这些句子.

zdszf1年前0
共回答了个问题 | 采纳率