Question Factor the expression 5(84a−1) Evaluate 420a−5Solution 5(84a−1) Show Solution Find the roots a=841Alternative Form a=0.011˙90476˙ Evaluate 420a−5To find the roots of the expression,set the expression equal to 0 420a−5=0Move the constant to the right-hand side and change its sign 420a=0+5Removing 0 doesn't change the value,so remove it from the expression 420a=5Divide both sides 420420a=4205Divide the numbers a=4205Solution a=841Alternative Form a=0.011˙90476˙ Show Solution
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