Question

I need help with number 8.

Answer 1

- 8/xy

Answer:

$\frac{64xy}{ - 8 {x}^{2} {y}^{2} } \\ ✓determine \: the \: sign \\ - \frac{64xy}{8 {x}^{2} {y}^{2}} \\ ✓cross \: out \: the \: common \: factor \\ - \frac{8xy}{{x}^{2} {y}^{2}} \\ ✓cross \: out \: the \: common \: factor \: \\ - \frac{8y}{x {y}^{2} } \\ ✓cross \: ut \: the \: cmmon \: factor \\ - \frac{8}{xy}$