Question

expand (k+4)³
$(a + b)3 = a3 + a2b + ab2 + b3$
write the answer​

Answer 1

Answer:

Step-by-step explanation:

Given that,

By using formula ( a + b )³ = a³ + 3a²b + 3ab² + b³

( k + 4 )³ = k³ + 3 ( k)² ( 4 ) + 3 ( k ) ( 4 )² + ( 4 )³

= k³ + 12k² + 3k ( 16 ) + 64

= k³ + 12k² + 48k + 64 is the answer.