Question

Add or Subtract x/x-6 + 3/x+7

Answer 1

`{(x)/(x-6)+(3)/(x+7)=(x(x+7)+3(x-6))/((x-6)(x+7))=(x^2+7x+3x-18)/((x-6)(x+7))=(x^2+10x-18)/((x-6)(x+7))}`

domain


`x\\e 6 \ , \ x\\e -7 \\\\ D: \ x \in \mathbb R - \{-7,6\}`