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Removing the variable's exponent
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$\sqrt{\left(x+7\right)^2}=\pm \sqrt{36}$
Learn how to solve quadratic equations problems step by step online. Solve the quadratic equation (x+7)^2=36. Removing the variable's exponent. Cancel exponents 2 and \frac{1}{2}. The square root of 36 is . We need to isolate the dependent variable , we can do that by simultaneously subtracting 7 from both sides of the equation.