yang pinter mtk tolong kerjakan no 1 sampai4 pake cara

1) (5 / 2x) + (3 / 2x)
= 8 / 2x
= 4 / x

2) { 3 / ( x + 2) } + { 2 / (x - 2)}
= { 3 (x - 2) + 2 (x + 2) } / { (x - 2)(x +2) }
= { 3x - 6 + 2x + 4 } / { (x - 2)(x + 2)}
= ( 5x - 2 ) / { (x - 2)(x + 2) }
= { 4x + (x - 2) } / {(x - 2) (x + 2)}
= 4x / (x + 2)