а) x²y - 2x = xxy−2xy - 2xy−2
б) 3a²b - 9ab² = 3aba−3ba - 3ba−3b
в) m² - 4n = m−2√nm - 2√nm−2√nm+2√nm + 2√nm+2√n
г) a³ - a = aa2−1a² - 1a2−1 = aa−1a - 1a−1a+1a + 1a+1
д) x² + 6x + 9 = x+3x + 3x+3²
е) a³ - 10a + 25 = a−5a - 5a−5²
ж) ax + bx + ay + by = a+ba + ba+bx+yx + yx+y
3) ab - b + 3a - 3 = ba−1a - 1a−1 + 3a−1a - 1a−1 = a−1a - 1a−1b+3b + 3b+3
а) x²y - 2x = xxy−2xy - 2xy−2
б) 3a²b - 9ab² = 3aba−3ba - 3ba−3b
в) m² - 4n = m−2√nm - 2√nm−2√nm+2√nm + 2√nm+2√n
г) a³ - a = aa2−1a² - 1a2−1 = aa−1a - 1a−1a+1a + 1a+1
д) x² + 6x + 9 = x+3x + 3x+3²
е) a³ - 10a + 25 = a−5a - 5a−5²
ж) ax + bx + ay + by = a+ba + ba+bx+yx + yx+y
3) ab - b + 3a - 3 = ba−1a - 1a−1 + 3a−1a - 1a−1 = a−1a - 1a−1b+3b + 3b+3