i want to solve by factoring. 5tsquared-10t=0?

2008-07-26 4:47 pm

回答 (5)

2008-07-26 5:06 pm
✔ 最佳答案
5t²-10t = 0. So, 5t² = 10t.....
5t = 10. So, t = 10÷5 = 2.
So, t = 2 is the answer.

OR

5t²-10t = 0 can be written as:
5t(t - 2) = 0. So, either the value of 5t must be equal to 0 or the value of t - 2 should be zero. Take it as two cases.

If t - 2 = 0, then t = 2.
Similarly, if 5t = 0, then t = 0. So, t has two solutions or values 2,0.
2008-07-26 4:50 pm
5t^2-10t=0
5t(t-2)=0
5t=0 or t-2=0
t=0 or 2
2008-07-26 6:34 pm
5t^2 - 10t = 0
5t(t - 2) = 0

5t = 0
t = 0/5
t = 0

t - 2 = 0
t = 2

∴ t = 0 , 2
2008-07-26 6:28 pm
5 t² - 10 t = 0
5 t (t - 2) = 0
t = 0 , t = 2
2008-07-26 6:25 pm
5t^2-10t=0

5t(t-2)=0
t=0 or 2


收錄日期: 2021-05-01 10:54:04
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080726084721AAvAPFx

檢視 Wayback Machine 備份