Multiply: fracx4cdotfrac8x2\\frac{x}{4} \\cdot \\frac{8}{x^2}fracx4cdotfrac8x2 (assume xneq0x \\neq 0xneq0).
frac2x\\frac{2}{x}frac2x
frac84x\\frac{8}{4x}frac84x
fracx2\\frac{x}{2}fracx2
frac2x1\\frac{2x}{1}frac2x1