Question

Alguien me ayuda a resolverlo

7×^2-2x-15=1

Answer 1

${7x}^{2} - 2x - 15 = 1 \\ {7x}^{2} - 2x = 1 + 15 \\ {7x}^{2} - 2x = 16 \\ 7x - 2x = \sqrt{16} \\ 5x = 4 \\ x = \frac{4}{5} \\ x = 0.8$