Expand the Trigonometric Expression (x-3)^2

Problem

(x−3)2

Solution

1. Identify the expression as a square of a binomial in the form (a−b)2

2. Apply the formula for the square of a binomial, which is (a−b)2=a2−2*a*b+b2

3. Substitute a=x and b=3 into the formula.

4. Simplify the terms by calculating x2 −2*(x)*(3) and 3

Final Answer

(x−3)2=x2−6*x+9

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