Question Factor the expression (1−t)(1+t) Evaluate 1−t2Rewrite the expression in exponential form 12−t2Solution (1−t)(1+t) Show Solution Find the roots t1=−1,t2=1 Evaluate 1−t2To find the roots of the expression,set the expression equal to 0 1−t2=0Move the constant to the right-hand side and change its sign −t2=0−1Removing 0 doesn't change the value,so remove it from the expression −t2=−1Change the signs on both sides of the equation t2=1Take the root of both sides of the equation and remember to use both positive and negative roots t=±1Simplify the expression t=±1Separate the equation into 2 possible cases t=1t=−1Solution t1=−1,t2=1 Show Solution
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