Question Factor the expression (1−n)(1+n) Evaluate 1−n2Rewrite the expression in exponential form 12−n2Solution (1−n)(1+n) Show Solution Find the roots n1=−1,n2=1 Evaluate 1−n2To find the roots of the expression,set the expression equal to 0 1−n2=0Move the constant to the right-hand side and change its sign −n2=0−1Removing 0 doesn't change the value,so remove it from the expression −n2=−1Change the signs on both sides of the equation n2=1Take the root of both sides of the equation and remember to use both positive and negative roots n=±1Simplify the expression n=±1Separate the equation into 2 possible cases n=1n=−1Solution n1=−1,n2=1 Show Solution
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