Question Simplify the expression 42−8s Evaluate 61−19−8sSolution 42−8s Show Solution Factor the expression 2(21−4s) Evaluate 61−19−8sSubtract the numbers 42−8sSolution 2(21−4s) Show Solution Find the roots s=421Alternative Form s=5.25 Evaluate 61−19−8sTo find the roots of the expression,set the expression equal to 0 61−19−8s=0Subtract the numbers 42−8s=0Move the constant to the right-hand side and change its sign −8s=0−42Removing 0 doesn't change the value,so remove it from the expression −8s=−42Change the signs on both sides of the equation 8s=42Divide both sides 88s=842Divide the numbers s=842Solution s=421Alternative Form s=5.25 Show Solution