If it was in standard notation it would be very confusing to add the number of cells and it would be less organized.
Yes it is C if you do the math and simplify it that is what you’ll get
Answer: The answer is x^2+2xy+2y^2–3x–3y–1
Step-by-step explanation: Move 2 to the left of y^2.
9 - 2(7 - 8)
9 - 2(-1)
9 - (-2)
11
