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
D= 0.25 days Because 6 hours is 25% of one day
Answer:
Step-by-step explanation:
Hope this helps
You just have to find what x is. Pretend there isn't the signs and think of it as = signs. Then whatever u do on one side do it to all of them
Answer:
10
Step-by-step explanation: