(8a+2в)2 (3x-2у)2= (10x-4)(3х+2) (3x+1)(6-4x)
1) 64a^2+32ab+4b^2
2) 9x^2-12xy+4y^2
3)30x^2+20X-12X-8=30x^2+8x-8
4)18x-12x^2+6-4x=14x-12x^2+6