Question

13. Simplify by using algebraic ident
(a) (x+3)(x - 3)(x² + y square
​

Answer 1

Answer:

(x+3)(x-3)=x²-9

(x²+y²)(x²-9)=x^4-9x²+x²y²-9y²

Step-by-step explanation:(a+b)(a-b)=a²-b²