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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