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

Mathematics

2 answers:

Damm [24]3 years ago

4 0

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

andreev551 [17]3 years ago

4 0

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.

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$\sigma=\sqrt{\dfrac{\sum_{i=1}^n(x_i-\overline{x})^2}{n-1}}$