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OpenStudy (anonymous):
we can say :
15/m-m=10-8
k ?:)
OpenStudy (anonymous):
ok!
OpenStudy (anonymous):
you have to simplify the equation, and then factorise it at the end to get your answers
OpenStudy (anonymous):
15/m-m=10-8
15/m-m^2/m=2
15-m^2/m=2
Factor from m :
m(m-15)/m=2
have :
m-15=2
m=15+2
m=17
Got it ?:)
OpenStudy (anonymous):
lol i dont think thats it
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OpenStudy (anonymous):
Why ?
What is your way ?:)
OpenStudy (anonymous):
the answer is: (m+5)(m-3)
which gives m = -5 or m = 3
OpenStudy (anonymous):
you can check these types of questions by subbing in your answers back into the original question, and is the left hand side and right hand side of the = sign are the same then you are right
OpenStudy (anonymous):
I want your way !
OpenStudy (anonymous):
thank you!
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OpenStudy (anonymous):
let me know if u need the working out part :)
OpenStudy (anonymous):
I do, just so I know I understand it cuz I have to do another problem like it
OpenStudy (anonymous):
15/m-m=10-8
(15/m) - m = 2
(15/M) - M - 2 = 0
now we are going to multiply all 3 terms by 'm'
(15M/M) - m^2 - 2M = 0
so i will just re arrange it by taking everything to the otherside to make em positive numbers m^2 +2M - 15 =0
Have you seen equations like this be4?
i
OpenStudy (anonymous):
Yes
OpenStudy (anonymous):
so u know how to factorise them?
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