(b+3)² = b²+6b+9
(у-9)² = y²-18y+81
(а+12)² = a²+24a+144
(р-d)² = p²-2pd+d²
(10-с)² = 100-20c+c²
(40+b)² = 1600+80b+b²
(15-х)²=225-30x+x²
(b+3)² = b²+6b+9
(у-9)² = y²-18y+81
(а+12)² = a²+24a+144
(р-d)² = p²-2pd+d²
(10-с)² = 100-20c+c²
(40+b)² = 1600+80b+b²
(15-х)²=225-30x+x²