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Apply the formula: $x+a=b$$\to x+a-a=b-a$, where $a=-1$, $b=99$, $x+a=b=x^2-1=99$, $x=x^2$ and $x+a=x^2-1$
Learn how to solve equations quadratiques problems step by step online.
$x^2-1+1=99+1$
Learn how to solve equations quadratiques problems step by step online. Solve the quadratic equation x^2-1=99. Apply the formula: x+a=b\to x+a-a=b-a, where a=-1, b=99, x+a=b=x^2-1=99, x=x^2 and x+a=x^2-1. Apply the formula: x+a+c=b+f\to x=b-a, where a=-1, b=99, c=1, f=1 and x=x^2. Apply the formula: x^a=b\to \left(x^a\right)^{\frac{1}{a}}=\pm b^{\frac{1}{a}}, where a=2 and b=100. Apply the formula: a^b=a^b, where a=100, b=\frac{1}{2} and a^b=\sqrt{100}.