Solve for x
X+1/x-1+ x-2/x+2 =3
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Answered by
3
Hi,
( x + 1 )/( x - 1 ) + ( x - 2 )/(x + 2 ) = 3
[(x + 1 )(x + 2 ) + ( x - 2 )( x - 1 ) ]/[(x -1)(x +2 )] = 3
[ x² + 3x + 2 + x² - 3x + 2 ] / ( x² + x - 2 ) = 3
( 2x² + 4 ) = 3 ( x² + x - 2 )
2x² + 4 = 3x² + 3x - 6
0 = 3x² + 3x - 6 - 2x² - 4
x² + 3x - 10 = 0
x² + 5x - 2x - 10 = 0
x( x + 5 ) - 2(x + 5 ) = 0
( x + 5 ) ( x - 2 ) = 0
Therefore ,
x + 5 = 0 or x - 2 = 0
x = -5 or x = 2
I hope this helps you.
: )
( x + 1 )/( x - 1 ) + ( x - 2 )/(x + 2 ) = 3
[(x + 1 )(x + 2 ) + ( x - 2 )( x - 1 ) ]/[(x -1)(x +2 )] = 3
[ x² + 3x + 2 + x² - 3x + 2 ] / ( x² + x - 2 ) = 3
( 2x² + 4 ) = 3 ( x² + x - 2 )
2x² + 4 = 3x² + 3x - 6
0 = 3x² + 3x - 6 - 2x² - 4
x² + 3x - 10 = 0
x² + 5x - 2x - 10 = 0
x( x + 5 ) - 2(x + 5 ) = 0
( x + 5 ) ( x - 2 ) = 0
Therefore ,
x + 5 = 0 or x - 2 = 0
x = -5 or x = 2
I hope this helps you.
: )
Answered by
1
Hey user here is your answer.....
----> To find- x
----> Given equation- x+1/x-1+x-2/x+2=3
----> Take LCM
◆(x+1)(x+2)+(x-2)(x-1)/(x-1)(x+2)=3
◆Open the brackets & cross multiply
◆x(x+2)+1(x+2)+x(x-1)-2(x-1)=3(x-1)(x+2)
◆x^2+2x+x+2+x^2-x-2x+2=3(x^2+2x-x-2)
◆2x^2+4=3x^2+6x-3x-6
◆2x^2+4=3x^2+3x-6
◆3x^2+3x-6-2x^2-4=0
◆x^2+3x-10=0
◆By middle term splitting
◆x^2+5x-2x-10=0
◆x(x+5)-2(x+5)=0
◆(x-2)(x+5)=0
◆x-2=0
&
x+5=0
◆x=2 & x=-5
hope it helps you☺️
----> To find- x
----> Given equation- x+1/x-1+x-2/x+2=3
----> Take LCM
◆(x+1)(x+2)+(x-2)(x-1)/(x-1)(x+2)=3
◆Open the brackets & cross multiply
◆x(x+2)+1(x+2)+x(x-1)-2(x-1)=3(x-1)(x+2)
◆x^2+2x+x+2+x^2-x-2x+2=3(x^2+2x-x-2)
◆2x^2+4=3x^2+6x-3x-6
◆2x^2+4=3x^2+3x-6
◆3x^2+3x-6-2x^2-4=0
◆x^2+3x-10=0
◆By middle term splitting
◆x^2+5x-2x-10=0
◆x(x+5)-2(x+5)=0
◆(x-2)(x+5)=0
◆x-2=0
&
x+5=0
◆x=2 & x=-5
hope it helps you☺️
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