amandaellis02 amandaellis02

13-03-2020
Mathematics

contestada

Which shows the factored form of x2 - 12x - 45?
(x+3xx - 15)
O (X - 3)(x - 15)
O (x+3)(x + 15)
O (x-3)(x + 15)

Respuesta :

VectorFundament120 VectorFundament120

13-03-2020

Answer: (x-15)(x+3)

Step-by-step explanation:

[tex]x^2-12x-45\\(x-15)(x+3)[/tex]

(x)(x) = x^2 which is correct

[(x)(3)]+[(-15)(x)] = 3x+(-15x) = 3x-15x = -12x which is correct

(-15)(3) = -45 which is correct.

Answer Link

Otras preguntas

884 rounded to the nearest hundred

Mia earned $520 painting faces at a carnival. She charged $13 for each face she painted. How many faces did Mia paint?

Find the midpoint of the value 4 and 8 on the x axis and the midpoint of the values 1 and 7 on the y axis

a game spinner is divided into 5 equal sections numbered 1 to 5. how many outcomes are in the sample space for spins of this spinner?

What is the largest island in the west indies??

Rachel enjoys exercising outdoors. Today she walked 5 2/3 miles in 2 2/3 hours. What is Rachel’s unit walking rate in miles per hour and in hours per mile?

21. The area of a circle is 240cm2. If 40cm2 was shaded what fraction of it was not?

If you wanted to learn more about the universe, what would you study

Which descriptions are correctly matched with the appropriate nation?choose all answers that are correct.Italy- monopolized trade Asia and became wealthy as a r

Why was the theory of the atom so controversial back in the early 1900's?