Question

Expand (K +4) square​

Answer 1

Answer:

K^2 + 2(K+4) +4^2

Step-by-step explanation:

we know that,

(a+b)^2 = a^2 + 2(a+b) + b^2

= (K + 4)^2

= K^2 + 2(K+4) +4^2