sqrt(y*y) = sqrt(y2) =±
y
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Do the multiplication, then take the square root. After the multiplication, you get 28x4y2. The square root of 28 is 2 times the root of 7, the square root of x4 is x2, and the root of y2 is y. So, the final result is 2 times square root of 7, times x2y.
square root (y) / Square root (3) root (y) / 1.73
y = sqrt X + 3sqrt X is the same as y = 4 sqrt X
x=y
The number you are referring to is the square root of the second number. In mathematical terms, if you have a number "x" and it produces the square of another number "y" when multiplied by itself, then x is the square root of y. For example, if x * x = y, then x is the square root of y.