what are the values of "x": x(x-2)=0?
回答 (10)
2009-03-18 12:36 pm
✔ 最佳答案
think of x and (x-2) as two numbersIf two numbers multiply to give zero then what does this say about them?
It says that at least one of them must be zero
so
either x=0 or (x-2)=0
ie the solutions are
x = 0 or 2
.,.,.
2009-03-18 8:07 pm
x(x - 2) = 0
x = 0
x - 2 = 0
x = 2
â´ x = 0 , 2
x = 0
x - 2 = 0
x = 2
â´ x = 0 , 2
2009-03-18 8:03 pm
x = 2 and x = 0
2009-03-18 7:34 pm
There's a property that says that if AB=0, then A=0 or B=0, or both.
In this problem, it means since x(x-2)=0, then x=0 or x-2=0.
Add 2 to both sides of the latter equation to get x=2, so x=0 or x=2.
In this problem, it means since x(x-2)=0, then x=0 or x-2=0.
Add 2 to both sides of the latter equation to get x=2, so x=0 or x=2.
2009-03-18 7:29 pm
eighter x=0,or x-2=0,x=2
2009-03-18 7:26 pm
x could be 0 (anything multiplied by zero = Zero
x could be 2 (because then x-2 = 0; see above)
x could be 2 (because then x-2 = 0; see above)
2009-03-18 7:30 pm
x(x-2)=0
means
either x=0
or x-2=0
x=2
means
either x=0
or x-2=0
x=2
2009-03-18 7:29 pm
x=0 and x=2.
2009-03-18 7:26 pm
x(x-2) = 0
expand brackets x^2 - 2x = 0
add 2x to both sides
x^2 = 2X
divide both sides by x
x=2
expand brackets x^2 - 2x = 0
add 2x to both sides
x^2 = 2X
divide both sides by x
x=2
2009-03-18 7:25 pm
The value of X will be 2
收錄日期: 2021-05-01 12:09:46
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090318042150AAomTNn