Question Factor the expression 81(x−128) Evaluate 81x−16Solution 81(x−128) Show Solution Find the roots x=128 Evaluate 81x−16To find the roots of the expression,set the expression equal to 0 81x−16=0Move the constant to the right-hand side and change its sign 81x=0+16Removing 0 doesn't change the value,so remove it from the expression 81x=16Multiply by the reciprocal 81x×8=16×8Multiply x=16×8Solution x=128 Show Solution
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