if 2x/(x+7)(x-7)=1/X+7+a/x-7,then the a
Answers
Answered by
0
THE ANSWER:
FIRST LHS= 2x/(x+7)(x-7)
2x/(x^2-7^2)
2x/(x^2-49)
NOW RHS= 1/x+7+a/x-7
by adding them by taking the lcm=x-7+a(x-7)/x^2-49
(here at the denominator i have us a^2-b^2 formula)
x-7+ax-7a/x^2-49
NOW equating LHS AND RHS
2x/x^2-49=x-7+ax-7a/x^2-49
(now x^2-49 and x^2-49 get cancelled)
the remaining are=2x=x-7+ax-7a
x=-7+ax-7a
x+7=ax-7a(if we take a as common we get)
x+7=a(x-7)
x+7/x-7=a
Hope you find my answer helpful please mark me as brainliest i have tried so hard
Similar questions