Question

Step by step explanation

How that k2+2k+1 becomes (k+1)2​

Answer 1

Step-by-step explanation:

(a+b)² = (a² + 2ab + b²)

(k + 1)² = (k² + 2k + 1)

Answer 2

Given,

K2 + 2K + 1 and it wanna became (k+1)2

We know that

${(a + b)}^{2} = {a}^{2} + {b}^{2} + 2ab$

${(k + 1)}^{2} = {k}^{2} + 2k + 1$