Question Find the roots x=521Alternative Form x=4.2 Evaluate 5x−21To find the roots of the expression,set the expression equal to 0 5x−21=0Move the constant to the right-hand side and change its sign 5x=0+21Removing 0 doesn't change the value,so remove it from the expression 5x=21Divide both sides 55x=521Solution x=521Alternative Form x=4.2 Show Solution
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