Question Simplify the expression 9x2−81 Evaluate 9(x2−9)Apply the distributive property 9x2−9×9Solution 9x2−81 Show Solution Factor the expression 9(x−3)(x+3) Evaluate 9(x2−9)Solution 9(x−3)(x+3) Show Solution Find the roots x1=−3,x2=3 Evaluate 9(x2−9)To find the roots of the expression,set the expression equal to 0 9(x2−9)=0Rewrite the expression x2−9=0Move the constant to the right side 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