(7x”+2x+5) + (3x”-8x-10) By Admin ReiPosted on October 28, 2022 (7x”+2x+5) + (3x”-8x-10) Jawaban Terkonfirmasi = 7x² + 3x² + 2x – 8x + 5 – 10= 10x² – 6x – 5