Mathematics, 19.10.2019 07:50 lostcharmedone01
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)
Answers: 2
![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)](/tpl/images/0333/8706/977d7.png)
Another question on Mathematics
Mathematics, 21.06.2019 22:00
Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square
Answers: 1
Mathematics, 21.06.2019 23:20
Find the value of x in the diagram below. select the best answer from the choices provided
Answers: 1
Mathematics, 22.06.2019 01:20
Ahyperbola centered at the origin has a vertex at (-6,0) and a focus at (10,0)
Answers: 2
Mathematics, 22.06.2019 01:40
Which of the following is the major negative aspect of crossover designs for research studies? a. prohibitive cost b. residual effects c-subject drepout d. incomplete randomization e. large sample size required
Answers: 1
You know the right answer?
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)...
Questions
Mathematics, 16.09.2021 01:00
Mathematics, 16.09.2021 01:00
Mathematics, 16.09.2021 01:00
History, 16.09.2021 01:00
English, 16.09.2021 01:00
Chemistry, 16.09.2021 01:00
History, 16.09.2021 01:00
World Languages, 16.09.2021 01:00
Mathematics, 16.09.2021 01:00
Mathematics, 16.09.2021 01:00
Mathematics, 16.09.2021 01:00
History, 16.09.2021 01:00
