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