SOLUTION: How do you solve, (x-4)(x-4)=0

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Question 51431: How do you solve, (x-4)(x-4)=0
Answer by rchill(405) About Me  (Show Source):
You can put this solution on YOUR website!
If you have two numbers being multiplied together to produce 0, that means at least one of the numbers has to be 0 because 0 times anything else is always 0. Therefore, that means that (x-4) must equate to a 0 thusly: x-4=0. Adding 4 to both sides produces: x-4%2B4=0%2B4, which simplifies to x=4. Because both factors are (x-4), there is only one answer; namely; x=4.