[tex] \frac{8}{2x+8} * \frac{ x^{2}-16 }{4} [/tex]
1. Cross cancel
[tex] \frac{4}{2x+8}* \frac{ x^{2} -16}{1} [/tex]
2. Multiply numerators
4*x²-16 = 4x²-64
3. Multiply denominators
2x+8*1 = 2x+8
[tex] \frac{4 x^{2} -64}{2x+8} [/tex]
4. Divide
[tex] \frac{4 x^{2} -64}{2x+8} = 2x-8[/tex]
5. Simplify
2(x-4)
Answer is 2(x - 4)
