a) 9b²+6b+b² = 10b²+6b = 2b(5b+3)
б) 28a + a² + 196 = (a+14)²
в) 2p² + 44p + 242 = 2(p^2+22p+121) = 2(p+11)²
a) 9b²+6b+b² = 10b²+6b = 2b(5b+3)
б) 28a + a² + 196 = (a+14)²
в) 2p² + 44p + 242 = 2(p^2+22p+121) = 2(p+11)²