emilyanita06
emilyanita06 emilyanita06
  • 04-04-2020
  • Mathematics
contestada

Please help!!! 2x²-5x-12 (quadratic equations)
Explain your work and describe the solution. I really appreciate it!

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 04-04-2020

Answer:

( 2x +3  ) (x-4    )

Step-by-step explanation:

2x²-5x-12

Factor

( 2x   ) (x    )

We need to look at the factors of -12

-1 *12   -2 *6   -3*4  -4*3  -6*2  -12*1

What multiplies 2 * 1st factor + the other factor to equal -5

2* -4 +3 = -8+3 =5

so the -4 goes on the outside and the 3 goes on the inside

( 2x +3  ) (x-4    )

Answer Link
amna04352
amna04352 amna04352
  • 07-05-2020

Answer:

(2x + 3)(x - 4)

Step-by-step explanation:

2x² - 5x - 12

2x² - 8x + 3x - 12

2x(x - 4) + 3(x - 4)

(2x + 3)(x - 4)

Answer Link

Otras preguntas

A deposit of $94 positive or negative
What was the purpose of the open door policy?
Why did the Dutch West India Company want to establish a colony in North America?
In your own words what is the application (purpose) of macconkey agar
What is the correct form of the verb "cerrar" in the following sentence?
What are the major landforms in Washington State?
On the first 4 quizzes of her chemistry class, nadia got an average score of 88. what does she need on the next quiz to have an overall average of 90?
Which of the following phrases could represent the expression k - 4? A.a number subtracted from four B.four less a number C.a number decreased by four D.a numbe
how were the inca able to farm on the mountainous land
Rebecca's father is 2 times as old as Rebecca. The sum of their ages is no less then 69. Find an inequality that can be used to represent the situation. A) x+2