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Find the values of k that make 2x^2 + kx + 5 factorable.. . A.. 1 or 10. . B.. 2 or 5. . C.. 7 or 11. . D.. 1 or 5

2 Answers

1 vote
test them
1 doesn't work, so cross out A and D
2 doesn't work cross out B
answer is C

User Joe Schmoe
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The third term of the quadratic equation, also called the constant, is the product of the roots of the equations. Among the choices, only letter D. 1 or 5, will give a product of 5. All the rest of the choices do not satisfy the condition. 
User Bruce Patin
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