Why is there more than one solution to x^2 = 4?
Think about it as 'What numbers can be x to get 4'. Remember that when you square a number the answer is always positive? Here is a situation in which it's important to consider both of the possible solutions.For this question x = 2 or x=-2.This is because when you square both sides they both become positive which makes them both solutions to to this problem.
BT
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