Question

b) (x2 – 8x + 7) dividido por (x – 7) rápido pfv

Answer 1

$delta = {8}^{2} - 4 \times 1 \times 7 \\ delta = 64 - 28 \\ delta = 36 \\ delta > 0 \\ x = \frac{x = - 8 + ou - \sqrt{36} }{2 \times 1} \\ x = \frac{x = - 8 + ou - 6}{2} \\ x1= \frac{ - 2}{2} = - 1 \\ x2= \frac{ - 14}{2} = - 7$

e isso*:-)