Question

How do you multiply `(3x ^ { 5} + 2y ^ { 3} ) ( 3x ^ { 5} - 2y ^ { 3} )`?

Answer 1

`9x^10-4y^6`

Explanation:

Apply formula ; `(a+b)(a-b)=a^2-b^2`

`(3x^5+2y^3)(3x^5-2y^3)`

`= (3x^5)^2-(2y^3)^2`

`= 9x^10-4y^6` [Ans]