btstae2005
btstae2005 btstae2005
  • 02-07-2020
  • Mathematics
contestada

Which of the binomials below is a factor of this trinomial? x2 - 13x + 30 A)x-5 B)x+3 C)x+5 D)x-3

Respuesta :

Wishing Wishing
  • 02-07-2020

Answer:

D) x-3

Step-by-step explanation:

[tex]x^2-13x+30=\\(x-3)(x-10)[/tex]

So the answer choices were:

A )x-5

B) x+3

C) x+5

D) x-3

The correct answer is D) x-3.

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taylora321
taylora321 taylora321
  • 02-07-2020

Answer:

It's D)x-3

Step-by-step explanation:

The roots of this equation (found using the quadratic formula) are 3 and 10. When you want to find the factors from the roots, simply switch the sign. The form for factors is (x-k). The factors are (x-3) and (x-10)

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