Are you ready for more? A box contains 20 square files that are 2 inches on each side. How many boxes of tiles will Elena need t
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Answer:
a, -b
Step-by-step explanation:
When x is a, the function becomes
as you see, a-a is 0, and as your whole function is multiplied by this, it makes it 0.
As you see -b+b is 0, and once again, this would make the whole function 0.