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Find all integers n such that the quadratic 7x^2+nx-11 can be expressed as the product of two linear factors with integer coefficients.

 Apr 21, 2020
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The possible factors of  7x2 + nx - 11  are:

(7x - 1)(x + 11)

(7x +1)(x - 11)

(7x + 11)(x - 1)

(7x - 11)(x + 1)

 

Multiply out each of these and you will have all the possible values of n.

 Apr 22, 2020

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