Question Factor the expression 3(7k−1) Evaluate 21k−3Solution 3(7k−1) Show Solution Find the roots k=71Alternative Form k=0.1˙42857˙ Evaluate 21k−3To find the roots of the expression,set the expression equal to 0 21k−3=0Move the constant to the right-hand side and change its sign 21k=0+3Removing 0 doesn't change the value,so remove it from the expression 21k=3Divide both sides 2121k=213Divide the numbers k=213Solution k=71Alternative Form k=0.1˙42857˙ Show Solution
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