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Q: What is the factor of this trinomial x2 plus 13x plus 30?

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(x - 10)(x - 3)

(x - 10)(x - 3)

If that's -13x, the answer is (x - 10)(x - 3) If that's +13x, the answer is (x + 10)(x + 3)

X^2 - 13X + 30 = 0 (X-3)(X-10) easy inspection problem

x2 - 13x + 30 = (x - 3)(x - 10). In case you are provided with a list that you forgot to include with your question, then any of the following is a possible factor: x - 3; x - 10; 3 - x; or 10 - x.

32

-2(2x^4 - 13x^3 + 15)

x2 + 13x = -30 ∴ x2 + 13x + 30 = 0 ∴ (x + 3)(x + 10) = 0 ∴ x ∈ {-3, -10}

You would factor out -1 (a) from a trinomial in an equation such as -a^2 +30a - 2a + 60 after the middle term has been separated. The final answer of this trinomial would then be (a-30) (a-30).

Assuming you mean n2 + 11n + 30, the factors are (n + 6)(n + 5).

x^2 + 13x + 30 = 0 x^2 + 10x + 3x + 30 = 0 x(x + 10) + 3(x + 10) = 0 (x + 3)(x + 10) = 0 x = -3 or x = -10

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