Question Find the roots r=−21Alternative Form r=−0.5 Evaluate 1+2rTo find the roots of the expression,set the expression equal to 0 1+2r=0Move the constant to the right-hand side and change its sign 2r=0−1Removing 0 doesn't change the value,so remove it from the expression 2r=−1Divide both sides 22r=2−1Divide the numbers r=2−1Solution r=−21Alternative Form r=−0.5 Show Solution
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