Question Factor the expression (x−3)(x+3) Evaluate x2−9Rewrite the expression in exponential form x2−32Solution (x−3)(x+3) Show Solution Find the roots x1=−3,x2=3 Evaluate x2−9To find the roots of the expression,set the expression equal to 0 x2−9=0Move the constant to the right-hand side and change its sign x2=0+9Removing 0 doesn't change the value,so remove it from the expression x2=9Take the root of both sides of the equation and remember to use both positive and negative roots x=±9Simplify the expression More Steps Evaluate 9Write the number in exponential form with the base of 3 32Reduce the index of the radical and exponent with 2 3 x=±3Separate the equation into 2 possible cases x=3x=−3Solution x1=−3,x2=3 Show Solution
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