Question

find the value of a3-8b3-36ab -216 when a=2b+6

Answer 1

The answer is 0 is that clear to you

Answer 2

Hey... here's your answer.

Answer:

0

Step-by-step explanation:

$(2b + 6) ^{3} - 8b ^{3} - 36(2b + 6)b - 216 \\ ({2b})^{3} + ( {6})^{3}+ 2(2b) ^{2} (6) + 2(2b)(6)^{2} - 8 {b}^{3} - 72 {b}^{2} - 216 \: b - 216 \\ 8 {b}^{3} + 216 + 72 {b}^{2} + 216 \: b - 8 {b}^{3} - 72 {b}^{2} - 216 \: b - 216 \\ 0$

Hope...this will help you.