Question

Simplify (2a+3b)³-(2a-3b)³​

Answer 1

Answer:

simply put in this formula:- (a+b)^3= a^3+b^3+3a^2b+ 3ab^2

and you will get your answer

and for for second

(a-b)^3= a^3- b^3- 3a^2b+ 3ab^2

Answer 2

Answer:

18b(4a²+3b²)

Step-by-step explanation:

=== m³-n³= (m-n)(m²+mn+n²)=(m-n)((m+n)²-mn) ===

• (2a+3b)³-(2a-3b)³​=
• (2a+3b-2a+3b)((2a+3b)²+(2a+3b)(2a-3b)+(2a-3b)²)=
• 6b((2a+3b+2a-3b)²- (2a+3b)(2a-3b))=
• 6b((4a)²- (2a)²+ (3b)²)=
• 6b(12a²+9b²)=
• 18b(4a²+3b²)