Berapakah hasil nilai “x” jika, -x² + 5x + 1 = 0? By Admin ReiPosted on December 10, 2022 Berapakah hasil nilai “x” jika, -x² + 5x + 1 = 0? Jawaban: 5x-10 =0 5x= 10 x= 10/5 x = 2