Question

What are 2 binomials that are factors of this trinomial? x^2-x-20

Answer 1

Answer:

(x-5) (x+4)

Step-by-step explanation:

x^2 -x -20

What two terms multiply to -20 and add to -1

-5*4 = -20

-5+4 = -1

(x-5) (x+4)

Answer 2

Answer:

$(x + 4)(x - 5)$

Step-by-step explanation:

${x}^{2} - x - 20 \\ {x}^{2} - 5x + 4x - 20 \\ x(x - 5) + 4(x - 5) \\ (x + 4)(x - 5)$

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