Question

480/X - 480/x+2=2/5
find x​

Answer 1

Answer:

480[(1/x)-(1/x+2)]=2/5

240[2-1/x(x+2)]=1/5

240/x²+2x=1/5

1200=x²+2x

x²+2x-1200=0

D= b²-4ac

=4+4800

=4804

x=±b-√D/2a

=±4-√4804/2

=±2-√4804

Answer 2

Step-by-step explanation:

480(x+2)-480x/x(x+2)=2/5

5(480x+960-480x)=2[x(x+2)]

2400x+4800-2400x=2x^2+4x

2x^2+4x=4800

x^2+2x=2400

x^2+2x-2400=0

x^2+50x-48x-2400=0

x(x+50)-48(x+50)=0

x=-50,x=48