Question

A+2/a-5÷a+1/a2-8a+15

Answer 1

For
`A+(2)/(a)-(5)/(a)+(1)/(a^2)-8a+15`

Combine the fractions
`(2)/(a) - (5)/(a) \ \textgreater \ \mathrm{Apply\:rule}\:(a)/(c)\pm (b)/(c)=(a\pm \:b)/(c) \ \textgreater \ (2-5)/(a)`



`\mathrm{Subtract\:the\:numbers:}\:2-5=-3 \ \textgreater \ (-3)/(a)`


`\mathrm{Apply\:the\:fraction\:rule}:\ (-a)/(b)=-(a)/(b) \ \textgreater \ -(3)/(a)`

Therefore our final answer is
`A-(3)/(a)+(1)/(a^2)-8a+15`

Hope this helps!