Question Factor the expression (1−x)(1+x) Evaluate 1−x2Rewrite the expression in exponential form 12−x2Solution (1−x)(1+x) Show Solution Find the roots x1=−1,x2=1 Evaluate 1−x2To find the roots of the expression,set the expression equal to 0 1−x2=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=−1Change the signs on both sides of the equation 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
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