Question Factor the expression (f−2)(f+2) Evaluate f2−4Rewrite the expression in exponential form f2−22Solution (f−2)(f+2) Show Solution Find the roots f1=−2,f2=2 Evaluate f2−4To find the roots of the expression,set the expression equal to 0 f2−4=0Move the constant to the right-hand side and change its sign f2=0+4Removing 0 doesn't change the value,so remove it from the expression f2=4Take the root of both sides of the equation and remember to use both positive and negative roots f=±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 f=±2Separate the equation into 2 possible cases f=2f=−2Solution f1=−2,f2=2 Show Solution
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