49 + 12.207 = 61.207
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The square root of 121 is 11 and 11 plus 49 = 60
It is: 4+7 = 11
if x^2 = 49, then the square root property says you can take the square root of both sides as long as you make one a plus-minus. x^2 = 49, which means square root of x^2 = plus minus the square root of 49 the square root of 49 is 7, so +- 7. We get: x = plus/minus 7 (this means either positive 7 or negative 7)
Plus or minus 7.
square root of 49 is 7 square root of 121 is 11