Step-by-step explanation:
(2x-y+3)(2x-y-3)=
4x²-2xy-6x-2xy+y²+3y+6x-3y-9=
4x²-4xy+y²-9=
(2x-y)²-9
Answer:
x/6 - 1
Step-by-step explanation:
x divide 6 subtract 1
Answer:
17/13
Step-by-step explanation:
25 is the answer because of the formula adding and subsequently
