问题 Simplify the expression 2−3k Evaluate 4−2−3k解题方案 2−3k 显示解题方案 Find the roots k=32Alternative Form k=0.6˙ Evaluate 4−2−3kTo find the roots of the expression,set the expression equal to 0 4−2−3k=0Subtract the numbers 2−3k=0Move the constant to the right-hand side and change its sign −3k=0−2Removing 0 doesn't change the value,so remove it from the expression −3k=−2Change the signs on both sides of the equation 3k=2Divide both sides 33k=32解题方案 k=32Alternative Form k=0.6˙ 显示解题方案