$(-5x+12)^2 = $   ?

$-25\,x^2\, -120\,x\,+ 144$ $25\,x^2\, -60\,x\,+ 144$ $25\,x^2\, -120\,x\,+ 144$ $25\,x^2\, -120\,x\,+ 24$

$(5y+12x)(5y-12x) = $   ?

$25\,y^2 \,- 12\,x^2$ $25\,y^2 \,- 144\,x^2$ $25\,y^2 \,- 24\,x^2$ $5y \,- 12x$

$(6y+4x)(6y-4x) = $   ?

$36\,y^2 \,- 16\,x^2$ $36\,y^2\, -48\,x\,y\,+ 16\,x^2$ $6y \,- 4x$ $6\,y^2 \,- 16\,x^2$

$(-9+7y)^2 = $   ?

$-81\, -126\,y\,+ 49\,y^2$ $81\, -126\,y\,+ 7\,y^2$ $81\, -126\,y\,+ 49\,y^2$ $-9\, -126\,y\,+ 49\,y^2$

$(-10x-12)^2 = $   ?

$-10\,x^2\, +240\,x\,+ 144$ $100\,x^2\, +240\,x\,+ 24$ $100\,x^2\, +240\,x\,+ 144$ $100\,x^2\, -240\,x\,+ 144$

$(-11-7x)^2 = $   ?

$-11\, +154\,x\,+ 49\,x^2$ $121\, +154\,x\,+ 49\,x^2$ $121\, +154\,x\,+ 7\,x^2$ $121\, -154\,x\,+ 49\,x^2$