how to solve y² - 11y?
回答 (7)
2009-09-06 4:21 pm
✔ 最佳答案
You need more help than you think !this is an expression, not an equation ! As such, it can be factored, simplified, ...
but, it can't be solved !
y^2 - 11y = y(y - 11)
QED
2009-09-06 11:48 pm
Factorize.
y^2 - 11y
= y(y) - y(11)
= y(y - 11)
y^2 - 11y
= y(y) - y(11)
= y(y - 11)
2009-09-06 11:20 pm
umm is there anything else all you can do is take a y out (y*(y-11)) unless theres another side of the equation if it = 0 the options are y=0 and y=11
2009-09-06 11:31 pm
dear solve it like this:
1step:
arrange it like this = -11y +y2
2 step:
you subtract 11 from i (y2 has a coefficient 1)
3step:
answer is -10y2
1step:
arrange it like this = -11y +y2
2 step:
you subtract 11 from i (y2 has a coefficient 1)
3step:
answer is -10y2
2009-09-06 11:24 pm
y² - 11y = 0
y(y - 11) = 0
y = 0 or y = 11
y(y - 11) = 0
y = 0 or y = 11
2009-09-06 11:21 pm
Well is it y2 - 11y = 0. If yes then since it is a quadratic equation you will have two roots.
y2 - 11y = 0
y ( y-11) = 0
y = 0 , 11
y2 - 11y = 0
y ( y-11) = 0
y = 0 , 11
2009-09-06 11:20 pm
I mean you forget the 0 in second member
so y^2-11y =0
y*(y-11) =0
2 roots y=0 and y=11
so y^2-11y =0
y*(y-11) =0
2 roots y=0 and y=11
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