用分解因式法解下列方程,100分哦~(记住,①3t(t-2)-2+t=02 2 ②9(t-1) =4(t+1)2 ③2(t-2) +t=12 2④2(2t+1) -t =0那些上面的2是平方号,t是未知数,记住,必须要用“分解因式法”②9(t-1)^2 =4(t+1)^2:③2(t-2)^2+t=1
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![用分解因式法解下列方程,100分哦~(记住,①3t(t-2)-2+t=02 2 ②9(t-1) =4(t+1)2 ③2(t-2) +t=12 2④2(2t+1) -t =0那些上面的2是平方号,t是未知数,记住,必须要用“分解因式法”②9(t-1)^2 =4(t+1)^2:③2(t-2)^2+t=1](/uploads/image/z/811216-64-6.jpg?t=%E7%94%A8%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%E6%B3%95%E8%A7%A3%E4%B8%8B%E5%88%97%E6%96%B9%E7%A8%8B%2C100%E5%88%86%E5%93%A6%7E%EF%BC%88%E8%AE%B0%E4%BD%8F%2C%E2%91%A03t%28t-2%29-2%2Bt%3D02+2+%E2%91%A19%28t-1%29+%3D4%28t%2B1%292+%E2%91%A22%28t-2%29+%2Bt%3D12+2%E2%91%A32%282t%2B1%29+-t+%3D0%E9%82%A3%E4%BA%9B%E4%B8%8A%E9%9D%A2%E7%9A%842%E6%98%AF%E5%B9%B3%E6%96%B9%E5%8F%B7%2Ct%E6%98%AF%E6%9C%AA%E7%9F%A5%E6%95%B0%2C%E8%AE%B0%E4%BD%8F%2C%E5%BF%85%E9%A1%BB%E8%A6%81%E7%94%A8%E2%80%9C%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%E6%B3%95%E2%80%9D%E2%91%A19%28t-1%29%5E2+%3D4%28t%2B1%29%5E2%EF%BC%9A%E2%91%A22%28t-2%29%5E2%2Bt%3D1)
用分解因式法解下列方程,100分哦~(记住,①3t(t-2)-2+t=02 2 ②9(t-1) =4(t+1)2 ③2(t-2) +t=12 2④2(2t+1) -t =0那些上面的2是平方号,t是未知数,记住,必须要用“分解因式法”②9(t-1)^2 =4(t+1)^2:③2(t-2)^2+t=1
用分解因式法解下列方程,100分哦~(记住,
①3t(t-2)-2+t=0
2 2
②9(t-1) =4(t+1)
2
③2(t-2) +t=1
2 2
④2(2t+1) -t =0
那些上面的2是平方号,t是未知数,记住,必须要用“分解因式法”
②9(t-1)^2 =4(t+1)^2:
③2(t-2)^2+t=1;
④2(2t+1)^2-t^2=0;
^2是平方号,这样该懂了吧!
忘了还有一条:3t(t-1)-2+t=0
用分解因式法解下列方程,100分哦~(记住,①3t(t-2)-2+t=02 2 ②9(t-1) =4(t+1)2 ③2(t-2) +t=12 2④2(2t+1) -t =0那些上面的2是平方号,t是未知数,记住,必须要用“分解因式法”②9(t-1)^2 =4(t+1)^2:③2(t-2)^2+t=1
1.
3t(t-2)-2+t=0
3t(t-2)+(t-2)=0
(t-2)(3t+1)=0
t=2或t=-1/3
2.
9(t-1)^2 =4(t+1)^2
9(t-1)^2 -4(t+1)^2=0
[3(t-1)]^2 =[2(t+1)]^2:
[3(t-1) +2(t+1)][3(t-1)-2(t+1)]=0
即(5t-1)(t-5)=0
t=1/5或t=5
3.
2(t-2)^2+t=1
应该为2(t-2)^2+t=2
2(t-2)^2+t-2=0
(t-2)[2(t-2)+1]=0
(t-2)(2t-5)=0
t=2或t=5/2
4.
2(2t+1)^2-t^2=0
[√2*(2t+1)+t][√2*(2t+1)-t]=0
[(2√2+1)t+√2][(2√2-1)t+√2]=0
t=√2/2√2+1或t=√2/2√2-1
即t=(4-√2)/7或t=(4+√2)/7
看不懂啊
1.3t(t-2)-2+t=0
3t(t-2)+(t-2)=0(提共因式)
(t-2)(3t+1)=0
t=2或t=-1/3
2.
9(t-1)^2 =4(t+1)^2
9(t-1)^2-4(t+1)^2=0
(3(t-1))^2-(2(t+1))^2=0
(3t-3+2t+2)(3t-3-2t-2)=0 ...
全部展开
看不懂啊
1.3t(t-2)-2+t=0
3t(t-2)+(t-2)=0(提共因式)
(t-2)(3t+1)=0
t=2或t=-1/3
2.
9(t-1)^2 =4(t+1)^2
9(t-1)^2-4(t+1)^2=0
(3(t-1))^2-(2(t+1))^2=0
(3t-3+2t+2)(3t-3-2t-2)=0 (平方差公式)
(5t-1)(t-5)=0
t=1/5或t=5
3.
2(t-2)^2+t=1
2(t^2-4t+4)+t=1
2t^2-8t+8+t-1=0
2t^2-7t+7=0
此题有误吧
4.
2(2t+1)^2-t^2=0 (平方差公式)
(根号2*(2t+1)+t)(根号2*(2t+1)-t)=0
收起
很想得你的分,可是看不懂啊,你可以把平方写成^2的形式,大家都懂!
这下懂了
2.
9(t-1)^2 =4(t+1)^2
9(t-1)^2-4(t+1)^2=0
(3t-3+2t+2)(3t-3-2t-2)=0
(5t-1)(t-5)=0
t=1/5或t=5
3.
2(t-2)^2+t=1
此题有误吧
4.
全部展开
很想得你的分,可是看不懂啊,你可以把平方写成^2的形式,大家都懂!
这下懂了
2.
9(t-1)^2 =4(t+1)^2
9(t-1)^2-4(t+1)^2=0
(3t-3+2t+2)(3t-3-2t-2)=0
(5t-1)(t-5)=0
t=1/5或t=5
3.
2(t-2)^2+t=1
此题有误吧
4.
2(2t+1)^2-t^2=0
(根号2*(2t+1)+t)(根号2*(2t+1)-t)=0
收起
(3t+1)(t-2)=0 t=1/3 t=2
后面的就看不懂了!呵呵
.....
无语,
你打的题目很难懂耶
不过莪还是知道啦
1.3t(t-2)-2+t=0
3t(t-2)+(t-2)=0(提共因式)
(t-2)(3t+1)=0
t=2或t=-1/3
2.
9(t-1)^2 =4(t+1)^2
9(t-1)^2-4(t+1)^2=0
(3(t-1))^2-(2(t...
全部展开
.....
无语,
你打的题目很难懂耶
不过莪还是知道啦
1.3t(t-2)-2+t=0
3t(t-2)+(t-2)=0(提共因式)
(t-2)(3t+1)=0
t=2或t=-1/3
2.
9(t-1)^2 =4(t+1)^2
9(t-1)^2-4(t+1)^2=0
(3(t-1))^2-(2(t+1))^2=0
(3t-3+2t+2)(3t-3-2t-2)=0 (平方差公式)
(5t-1)(t-5)=0
t=1/5或t=5
3.
2(t-2)^2+t=1
2(t^2-4t+4)+t=1
2t^2-8t+8+t-1=0
2t^2-7t+7=0
这个你抄错题啦把
4.
2(2t+1)^2-t^2=0 (平方差公式)
(根号2*(2t+1)+t)(根号2*(2t+1)-t)=0
收起
怎么不搞点大家都懂的?
平方在哪啊