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Find the roots of the polynomial $x^2-81$ by putting it in the form of an equation and then set it equal to zero
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$x^2-81=0$
Learn how to solve equations problems step by step online. Find the roots of x^2-81. Find the roots of the polynomial x^2-81 by putting it in the form of an equation and then set it equal to zero. We need to isolate the dependent variable , we can do that by simultaneously subtracting -81 from both sides of the equation. Canceling terms on both sides. Removing the variable's exponent.