Determine whether the expressions are equivalent or not.

? Equivalent Not Equivalent  1. $2xy$ and $(2x)(2y)$

? Equivalent Not Equivalent  2. $(3x)(4y)(2x)$ and $24 x^2 y$

? Equivalent Not Equivalent  3. $2c + d$ and $c+2d$

? Equivalent Not Equivalent  4. $5-x$ and $-x+5$

? Equivalent Not Equivalent  5. $(x+3)(x+4)$ and $(x+3)(4+x)$

? Equivalent Not Equivalent  6. $x(3x)$ and $4x$