That has God as being a trickster who deceptively makes young things look old. And if God is tricking us with that, what else is He tricking us with? Maybe the Bible is a trick whereas we should be doing the opposite? I certainly don't believe that, but it logically would have to be a possibility for you using your position on creation by a deceptive deity.
That's not how it works. When something is dated, it's put into the context of being bracketed with a probability range of it being 90% correct.
So, let's say a particular sample tests out at being 1 million years b.p., and the bracket is + or - 200,000 years. Therefore it would be from 1,200,000 to 800,000 years b.p. with approximately a 90% chance of being correct. The degree of error may be different, however, depending other factors, so it could be 100,000 years or 50,000 years, for examples.
But what's also important to know is that this type of testing is not done in a vacuum, so other objects found in the same strata may also be dated as well, which forms as a double-check.
You must think that geologists and nuclear physicists are idiots or are dishonest, as they supposedly either don't know what they're doing or are so utterly dishonest that they just out-and-out lie-- or both. To prevent such ignorance or dishonesty, scientists constantly double-check each other, a process that one can see if you simply buy one copy of "Scientific American" and read the critiques of previous studies.