Question

how do i simplify (3x-y) (3x+y)​

Answer 1

Answer:

Step-by-step explanation:

alright so first you want to multiply 3x by 3x and y

so far you have 9x^2+3xy

then you do y x 3x and y x y

now you have 9x^2+3xy+3xy+y^2

then you combine like terms to get the final answer of

9x62 + 6x^2y^2 + y^2