Asked by robby
x/4-4/x
over
1-4/x
simplify this
over
1-4/x
simplify this
Answers
Answered by
Reiny
use brackets please
(x/4 - 4/x) / (1 - 4/x)
= (x/4 - 4/x) / (1 - 4/x) * (4x)/(4x) , actually multiply by 1
=(x^2 - 16)/(4x-16)
= (x+4)(x-4)/(4(x-4))
= (x+4)/4 , x ≠ 4
(x/4 - 4/x) / (1 - 4/x)
= (x/4 - 4/x) / (1 - 4/x) * (4x)/(4x) , actually multiply by 1
=(x^2 - 16)/(4x-16)
= (x+4)(x-4)/(4(x-4))
= (x+4)/4 , x ≠ 4
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