Question

(4a+7b)³-(4a-7b)³ Please give me the answer of this question with steps ​

Answer 1

Answer:

using the the formula of (a+b)3 & (a+b)3

Answer 2

Answer:

3 = 42b

Step-by-step explanation:

3 (4a +7b) - (4a - 7b)

12a + 21 b - (4a-7b) .3

12a + 21 b - 12 a + 21 b

42b