$(-5y+5)(-5y-5) = $   ?

$-5\,y^2 \,- 25$ $25\,y^2 \,- 25$ $25y \,- 25$ $-5y \,- 5$

$(11y-5)^2 = $   ?

$121\,y^2\, -55\,y\,+ 25$ $121\,y^2\, -110\,y\,+ 25$ $22\,y^2\, -110\,y\,+ 25$ $11\,y^2\, -110\,y\,+ 25$

$(-12+11x)^2 = $   ?

$144\, -264\,x\,+ 121\,x^2$ $-24\, -264\,x\,+ 121\,x^2$ $144\, +264\,x\,+ 121\,x^2$ $-144\, -264\,x\,+ 121\,x^2$

$(-8-7x)^2 = $   ?

$64\,- 49\,x^2$ $64\, -112\,x\,+ 49\,x^2$ $-64\, +112\,x\,+ 49\,x^2$ $64\, +112\,x\,+ 49\,x^2$

$(x+7y)(x-7y) = $   ?

$x \,- 49\,y^2$ $\,x^2\, +14\,x\,y\,+ 49\,y^2$ $\,x^2 \,- 49\,y^2$ $x \,- 7y$

$(-12+5x)^2 = $   ?

$-24\, -120\,x\,+ 25\,x^2$ $144\, -120\,x\,+ 25\,x^2$ $-12\, -120\,x\,+ 25\,x^2$ $-144\, -120\,x\,+ 25\,x^2$