square roots

santasad13 said:
find both roots of each equation to the nearest tenth

x^2 = 618

To "undo" squaring, take the square root of both sides. Remember that any positive number has TWO square roots, one positive and one negative:

sqrt(x^2) = +/- sqrt(618)

x = +/- sqrt(618)

Now, use your calculator. Round your answer to the nearest tenth (one decimal place)
 
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