kktaco2222 kktaco2222

02-01-2021
Mathematics

contestada

Factor completely 3x^2+ 2x -1.
O (3x + 1)(x - 1)
O (3x + 1)(x + 1)
O (3x - 1)(x + 1)
O (3x - 1)(x - 1)

Respuesta :

CSMedrano CSMedrano

02-01-2021

Answer:

option C

Step-by-step explanation:

[tex]3x^2+2x-1\\\\=(3x+a)(x+b)\\\\(3b+a)=2\\\\ab=-1[/tex]

and here we think of b=1 and a=-1

so we have

[tex](3x-1)(x+1)[/tex]

Answer Link

Otras preguntas

Solve for x: 3 2x=5x-9

Which of the following would be the best reason to use titration for monitoring the effects of acid rain on drinking water?

What is "maya blue"? why is it important to mayan art??

Can a triangle have sides with the given lengths? Explain. 2 ft, 7 ft, 16 ft

I'm really confused on 6-26. How do you find the equation?

how does the y-intercept play a role in graphing a line?

a triangle has base 7m and area 17.5 m^2 . what is the height?

Emi made a 90 on her math test. There was 60 problems on her test. How many did she miss?

In "The Story of David," why must David leave the king's house and return to his father's home in Bethlehem?

Which sentence uses the correct pronoun? a. there were about ten people in line behind her. b. there were about ten people in line behind he. c. there were a