haleywillaert haleywillaert

01-03-2019
Mathematics

contestada

Factor 2x^2-4x-30 completely. A. 2(x-5)(x+3) B. (2x-5)(x+3) C. (2x+3)(x-5) D. 2(x-3)(x+5)

Respuesta :

01-03-2019

Answer:

2(x - 5)(x + 3)

Step-by-step explanation:

[tex]2x^2-4x-30\\\\=2\cdot x^2-2\cdot2x-2\cdot15\\\\=2(x^2-2x-15)\\\\=2(x^2+3x-5x-15)\\\\=2[x(x+3)-5(x+3)]\\\\=2(x+3)(x-5)[/tex]

Answer Link

Otras preguntas

Good morning guys how are you please help me this question

You have been given data about gas prices in 15 states. Comparing the two data sets below, what does the larger standard deviation, range, and variance say abou

how to write an essay about your country in french

He coasted away from his home, passing over bicycles and cars, their antennae scraping the bottom of his canoe. every vehicle, old and new, was gone, unsalvagea

Differences in the democratic-republican party during the election of 1824 led to: a a communist government. b the elimination of political parties. c a split i

Speaker A: "The president does not like the law Congress is voting on. He does not think it is the right thing for the government to do." Speaker B: "If the pre

Actor ray liotta died in his sleep this week at the age of 67. Which film did he not appear in?.

The function m is given in three equivalent forms.

Please help, sigma notations please big project 100 points

Write an equation for the line that is parallel to the given line that passes through the given point. y = -6x + 2; (-1,2)