8 miles is approximately equal to 6 km. How many km are equal to 28 miles? How many miles are equal to 42 km?
1 answer:
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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.