(Xpangkat2-5xpangkat2+7x-5):(xpangkat2+2x-1)

[tex]x {}^{2} - 5x {}^{2} + 7x - 5 = x {}^{2} + 2x - 1 \\ x { }^{2} - 5x {}^{2} - x {}^{2} + 7x - 2x = - 1 + 5 \\ - 3x {}^{2} + 5x = 4 \\ 2x {}^{2} = 4 \\ x = 2[/tex]