Question

Phân tích đa thức thành nhân tử:
(6p+1)^2-12(6p+1)+36
81-18(7k-5)+(5-7k)^2

Answer 1

a: \(=\left(6p+1-6\right)^2=\left(6p-5\right)^2\)

b: \(=\left(7k-5-9\right)^2=\left(7k-14\right)^2=49\cdot\left(k-2\right)^2\)

Answer 2

\(=\left(6p+1-6\right)^2=\left(6p-5\right)^2\)

\(=\left(9-5+7k\right)^2=\left(4+7k\right)^2\)