ahmedgta51a ahmedgta51a
  • 15-12-2018
  • Mathematics
contestada

2x^2 + 5x - 12 solve this expression

Respuesta :

wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 15-12-2018

Answer:

x=3/2,  x=-4

Step-by-step explanation:

2x^2 + 5x - 12


First lets see if we can factor this

(2x    ) ( x      )

-12 = -1*12     1*-12

    -  2*6        2 * -12

    -  3*4       3 * -4


2 * one of these pairs - the other pair = +5  

2*4 -3 = 5

Put the -3 in the first spot and the 4 in the second spot

(2x-3)  ( x+4)

Using the zero product property

2x-3 =0     x+4=0

2x=3             x=-4

x = 3/2

Answer Link

Otras preguntas

Use prime factorazations of 24 and 28 to find the lcm
Someone pls help me!
Where are the nonmetals located on the periodic table? only in the first column in between the metalloids and the metals on the far right side in the botto
A miner finds a piece of shiny metal while panning for gold. He finds that the metal has a volume of 1.3ml and a mass of 25.1g. What is the density of the metal
A pool has a depth of 12 feet and a width of 14 feet.If it holds 1680 cubic feet of water, what is the length of the pool?
Help with Math homework
in what quadrant is the coorinate -4 -5
Draw a stepwise mechanism for the chlorination of 2−phenylethanol with thionyl chloride in pyridine:
How to write at persuasive essay on job management
which group overpowered the romans and captured jerusalem