Question Simplify the expression x2−1 Evaluate x×1×x−1Solution More Steps Evaluate x×1×xRewrite the expression x×xMultiply the terms x2 x2−1 Show Solution Factor the expression (x−1)(x+1) Evaluate x×1×x−1Evaluate More Steps Evaluate x×1×xRewrite the expression x×xMultiply the terms x2 x2−1Rewrite the expression in exponential form x2−12Solution (x−1)(x+1) Show Solution Find the roots x1=−1,x2=1 Evaluate x×1×x−1To find the roots of the expression,set the expression equal to 0 x×1×x−1=0Multiply the terms More Steps Multiply the terms x×1×xRewrite the expression x×xMultiply the terms x2 x2−1=0Move the constant to the right-hand side and change its sign x2=0+1Removing 0 doesn't change the value,so remove it from the expression x2=1Take the root of both sides of the equation and remember to use both positive and negative roots x=±1Simplify the expression x=±1Separate the equation into 2 possible cases x=1x=−1Solution x1=−1,x2=1 Show Solution