How do you factor x to the second power minus forty nine?
Use the differences of squares rule. The square root of x to the second is x and the square root of 49 is 7. So x to the second minus 49 factors to (x-7) times (x+7)
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About Square Root
A square root is a number or quantity that when multiplied by itself gives a given number or quantity. For example, the square root of 9 is 3, the square root of 16 is 4, and the square root of 36 is 6.
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