Question Factor the expression (w−2)(w+2) Evaluate w2−4Rewrite the expression in exponential form w2−22Solution (w−2)(w+2) Show Solution Find the roots w1=−2,w2=2 Evaluate w2−4To find the roots of the expression,set the expression equal to 0 w2−4=0Move the constant to the right-hand side and change its sign w2=0+4Removing 0 doesn't change the value,so remove it from the expression w2=4Take the root of both sides of the equation and remember to use both positive and negative roots w=±4Simplify the expression More Steps Evaluate 4Write the number in exponential form with the base of 2 22Reduce the index of the radical and exponent with 2 2 w=±2Separate the equation into 2 possible cases w=2w=−2Solution w1=−2,w2=2 Show Solution
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