A^2 – 14a + 49…….. By Admin ReiPosted on October 28, 2022 A^2 – 14a + 49…….. A² – 14a + 49a² – 7a – 7a + 49a(a – 7) – 7 ( a – 7)(a – 7)(a – 7) 223222222222222222222222