Представить в виде многочлена (4x-1)² (7+8y)(8y-7) (xy+10)² (2-3x)²
(4x-1)^2=16x^2-8x+1 (7+8y)(8y-7)=49-64y^2 (xy+10)^2=xy^2+20xy+100 (2-3x)^2=4-12x+9x^2