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Solve 2x2 + 12x = 10. (1 point) Select one: a. −3 ± square root 14 b. −3 ± 2 square root 2 c. −3 ± square root 19 d. −3 ± square root 29

User John Deev
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2 Answers

2 votes

Answer:

2x2−12x+7=0

a≠1,a=2 so divide through by 2

22x2−122x+72=02

which gives us

x2−6x+72=0

Step-by-step explanation:

User Mau Ruiz
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6 votes

Final Answer:

The solution to 2x^2 + 12x = 10 is a. -3 ± √14.

Step-by-step explanation:

Move the constant term to the right side:

2x^2 + 12x - 10 = 0

Factor out the greatest common factor:

2(x^2 + 6x - 5) = 0

Factor the quadratic expression:

2(x + 5)(x - 1) = 0

Solve for x using the zero factor property:

x + 5 = 0 or x - 1 = 0

x = -5 or x = 1

Combine solutions:

x = -5 ± √14

Therefore, the solution to the equation is -3 ± √14.

Option d (-3 ± √29) is incorrect because the square root of 29 is not a factor of 10. Options b and c are incorrect because the coefficient of x in the quadratic expression is 12, not 6, resulting in a different square root term.

User Zahidur
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