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We need to isolate the dependent variable , we can do that by simultaneously subtracting $5$ from both sides of the equation
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$x^2+5-5=20-5$
Learn how to solve equations problems step by step online. Find the roots of x^2+5=20. We need to isolate the dependent variable , we can do that by simultaneously subtracting 5 from both sides of the equation. Canceling terms on both sides. Removing the variable's exponent. Cancel exponents 2 and \frac{1}{2}.