Question Simplify the expression Solution 1−2c+c2 Evaluate (1−c)2Use (a−b)2=a2−2ab+b2 to expand the expression 12−2×1×c+c2Solution 1−2c+c2 Show Solution Find the roots Find the roots of the algebra expression c=1 Evaluate (1−c)2To find the roots of the expression,set the expression equal to 0 (1−c)2=0The only way a power can be 0 is when the base equals 0 1−c=0Move the constant to the right-hand side and change its sign −c=0−1Removing 0 doesn't change the value,so remove it from the expression −c=−1Solution c=1 Show Solution