Question Simplify the expression 4−21x Evaluate 4−3x×7Solution 4−21x Show Solution Find the roots x=214Alternative Form x=0.1˙90476˙ Evaluate 4−3x×7To find the roots of the expression,set the expression equal to 0 4−3x×7=0Multiply the terms 4−21x=0Move the constant to the right-hand side and change its sign −21x=0−4Removing 0 doesn't change the value,so remove it from the expression −21x=−4Change the signs on both sides of the equation 21x=4Divide both sides 2121x=214Solution x=214Alternative Form x=0.1˙90476˙ Show Solution
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