Question

x^-7x+12=20x^+x+1 resultado​

Answer 1

${x}^{2} - 7x + 12 = 20 {x}^{2} + x + 1 \\ 19 {x}^{2} + 8x - 11 = 0 \\ (x + 1)(19x - 11) = 0 \\ x + 1= 0 \: \: \: o \: \: \: 19x - 11 = 0 \\ x = - 1 \: \: \: o \: \: \: 19x = 11 \\ x = - 1 \: \: \: o \: \: \: x = \frac{11}{19}$