Final Answer
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When multiplying two powers that have the same base ($x$), you can add the exponents
Learn how to solve one-variable linear equations problems step by step online.
$x^2+81=0$
Learn how to solve one-variable linear equations problems step by step online. Solve the equation xx+81=0. When multiplying two powers that have the same base (x), you can add the exponents. We need to isolate the dependent variable x, we can do that by simultaneously subtracting 81 from both sides of the equation. Canceling terms on both sides. Removing the variable's exponent.