QuestionJuly 16, 2025

Use completing the square to solve the equation x^2+10x=25 First determine the number you must add to both sides of the equation. 100;-5pm 5sqrt (2) 25;5pm sqrt (50) 25;-5pm 5sqrt (2) -25;-5pm 10sqrt (2)

Use completing the square to solve the equation x^2+10x=25 First determine the number you must add to both sides of the equation. 100;-5pm 5sqrt (2) 25;5pm sqrt (50) 25;-5pm 5sqrt (2) -25;-5pm 10sqrt (2)
Use completing the square to solve the equation x^2+10x=25 First determine the number you must add to both sides of the equation.
100;-5pm 5sqrt (2)
25;5pm sqrt (50)
25;-5pm 5sqrt (2)
-25;-5pm 10sqrt (2)

Solution
4.2(361 votes)

Answer

\( 25 ; -5 \pm \sqrt{50} \) Explanation 1. Identify the term to complete the square The equation is \( x^2 + 10x = 25 \). To complete the square, take half of the coefficient of ( x ), which is 10, divide by 2 to get 5, and then square it to get **\( 5^2 = 25 \)**. 2. Add and subtract the square term Add 25 to both sides: \( x^2 + 10x + 25 = 25 + 25 \). 3. Simplify the equation This gives \( (x+5)^2 = 50 \). 4. Solve for ( x ) Take the square root of both sides: \( x+5 = \pm \sqrt{50} \). Therefore, \( x = -5 \pm \sqrt{50} \).

Explanation

1. Identify the term to complete the square<br /> The equation is \( x^2 + 10x = 25 \). To complete the square, take half of the coefficient of ( x ), which is 10, divide by 2 to get 5, and then square it to get **\( 5^2 = 25 \)**.<br /><br />2. Add and subtract the square term<br /> Add 25 to both sides: \( x^2 + 10x + 25 = 25 + 25 \).<br /><br />3. Simplify the equation<br /> This gives \( (x+5)^2 = 50 \).<br /><br />4. Solve for ( x )<br /> Take the square root of both sides: \( x+5 = \pm \sqrt{50} \).<br /> Therefore, \( x = -5 \pm \sqrt{50} \).
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