Question

Simplify: (4K +3.)3 – (4K-3.)3​

Answer 1

Answer:

(4k +3)3 - (4k-3)3

= (12k+9) - (12k-9)              ... (multiplying with 3)

= 12k+9-12k+9                   ... (opening the brackets and changing signs)  

= 9+9                                 ... (12k -12k = 0)  

= 18                                    

Explanation:

Hope this helped you. :)