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We need to isolate the dependent variable , we can do that by simultaneously subtracting $-1$ from both sides of the equation
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$x^2-1+1=99+1$
Learn how to solve quadratic equations problems step by step online. Solve the quadratic equation x^2-1=99. We need to isolate the dependent variable , we can do that by simultaneously subtracting -1 from both sides of the equation. Canceling terms on both sides. Removing the variable's exponent. Cancel exponents 2 and \frac{1}{2}.