Question Factor the expression (b−2)(b+2) Evaluate b2−4Rewrite the expression in exponential form b2−22Solution (b−2)(b+2) Show Solution Find the roots b1=−2,b2=2 Evaluate b2−4To find the roots of the expression,set the expression equal to 0 b2−4=0Move the constant to the right-hand side and change its sign b2=0+4Removing 0 doesn't change the value,so remove it from the expression b2=4Take the root of both sides of the equation and remember to use both positive and negative roots b=±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 b=±2Separate the equation into 2 possible cases b=2b=−2Solution b1=−2,b2=2 Show Solution
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