Q. Complete the square. Fill in the number that makes the polynomial a perfect-square quadratic.k2−22k+
Identify coefficients: Identify the values of a, b, and c in the quadratic expression.Leading coefficient (a): 1Coefficient of linear term (b): −22Constant (c): ?
Complete the square: Determine the value needed to complete the square.To complete the square for k2−22k, add (−222)2.Perfect square quadratic: k2−22k+(−222)2
Calculate missing value: Calculate (−22/2)2 to find the missing value in k2−22k+___.(−22/2)2=(−11)2=121