Which of the following is a polynomial with roots: − square root of 5 , square root of 5 , and 3? (6 points)a) x3  − 3x^2  − 5x + 15b) x^3  + 2^x2  − 3x − 6 c) x^3  − 2x^2  − 3x + 6 d) x^3  + 3x^2  − 5x − 15

Let's check the first polynomial , that is

We need to factor it first and for that we have to do grouping and factoring .

TO find the roots, we need to set P(x) to 0, that is

SO the correct option is A .

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