Identify binomial and formula: Identify the binomial to be squared and the special case formula to use.The given expression is (x−4)2, which is a binomial squared.The special case formula for the square of a binomial is (a−b)2=a2−2ab+b2.Here, a=x and b=4.
Apply special case formula: Apply the special case formula to the given binomial.Using the formula (a−b)2=a2−2ab+b2, we substitute a with x and b with 4.(x−4)2=x2−2(x)(4)+42
Perform multiplication and simplify: Perform the multiplication and simplify the expression.x2−2(x)(4)+42= x2−8x+16
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