Q. Solve for x. Enter the solutions from least to greatest.(x−7)2−25=0 lesser x=□ greater x=□
Identify Equation: Identify the equation to solve.The given equation is (x−7)2−25=0.
Rewrite in Difference of Squares: Rewrite the equation in the form of a difference of squares.The equation (x−7)2−25=0 can be seen as a difference of squares since 25 is the square of 5.
Factor the Difference of Squares: Factor the difference of squares.The difference of squares can be factored as (a2−b2)=(a−b)(a+b).So, (x−7)2−25=(x−7−5)(x−7+5).
Simplify the Factors: Simplify the factors.(x−7−5)(x−7+5) simplifies to (x−12)(x−2).
Set Factors Equal and Solve: Set each factor equal to zero and solve for x. First, set x−12=0, which gives x=12. Then, set x−2=0, which gives x=2.
Identify Lesser and Greater Solutions: Identify the lesser and greater solutions.Since 2 is less than 12, the lesser x is 2 and the greater x is 12.