Need more information to answer
Answer: he bought 6 of the .75cent then 4 of the .50c
Step-by-step explanation:
It's not the difference of squares, rather it is the square of a difference. That leaves a perfect square trinomial, which narrows your selection to two choices. An expression with 2 terms is not a trinomial, so that further narrows your selection. The appropriate choice is
... (4xy -3z)² = 16x²y² -24xyz +9z², a perfect square trinomial
_____
The expression you have in your problem statement has no z term, so none of the choices is applicable to that one.
I believe the correct answer is B
That's not true. 56 is 10 more than 46. 46 +10 is 56.
