Solve x2 + 10x = 24 by completing the square. which is the solution set of the equation?
1-5 - 734,-5 + 734)
02-5 - 129, -5 +129) |
0 (-12, 2}
0 (-2,12}
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(- 12, 2 )

Step-by-step explanation:

Given

x² + 10x = 24

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(5)x + 25 = 24 + 25

(x + 5)² = 49 ( take the square root of both sides )

x + 5 = ± = ± 7 ( subtract 5 from both sides )

x = - 5 ± 7

Hence

x = - 5 - 7 = - 12 or x = - 5 + 7 = 2

Solution is ( - 12, 2 )

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Step-by-step explanation:

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