(х+2)²
(2a+3b)²
(5x-7)²
(4a-b)²
(m+4)²
(3m+2n)²
(7m-2)²
(8m-n)²
(a+9)²
(3x+y)²
(4a-9)²
(5x-3y)²

x² + 4+44a² +12ab+9b²25x²-70x+4916a²-8ab+b²m² + 4m+169m²+12mn+4n²49m²-24m+464m²-19mn+ina² +18a+819x²+6xy+a16a²-72a+8125x²-30xy+9y²