Question

(a+c)²-4b(a+c)+4b²=c​

Answer 1

Answer:

$(a + c) ^{2} - 2b(a + c) - 2b(a + c) + 4 {b}^{2} = c \\ (a + c)(a + c - 2b) - 2b(a + c - 2b) = c \\ (a + c - 2b)^{2} = c$