Question Simplify the expression w2−1 Evaluate w2×1−1Solution w2−1 Show Solution Factor the expression (w−1)(w+1) Evaluate w2×1−1Any expression multiplied by 1 remains the same w2−1Rewrite the expression in exponential form w2−12Solution (w−1)(w+1) Show Solution Find the roots w1=−1,w2=1 Evaluate w2×1−1To find the roots of the expression,set the expression equal to 0 w2×1−1=0Any expression multiplied by 1 remains the same w2−1=0Move the constant to the right-hand side and change its sign w2=0+1Removing 0 doesn't change the value,so remove it from the expression w2=1Take the root of both sides of the equation and remember to use both positive and negative roots w=±1Simplify the expression w=±1Separate the equation into 2 possible cases w=1w=−1Solution w1=−1,w2=1 Show Solution