Tolong jawab pakai Cara nya, Nomor 10

3 /(x+ 2) - 4 / (x - 1) ..................dikali silang

= (3 (x - 1) - 4 (x + 2) ) / (x + 2) (x - 1)
= (3x - 3 - 4x - 8) / (x² + x - 2)
= (-x - 11 ) / (x² + x - 2)
jawaban (A)