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