YunoMatashi1029
YunoMatashi1029 YunoMatashi1029
  • 04-07-2019
  • Mathematics
contestada

The problem is in the pictures, please show step by step how to do it. Thanks! :)

The problem is in the pictures please show step by step how to do it Thanks class=

Respuesta :

sumjok
sumjok sumjok
  • 04-07-2019

Answer:

-4,-5/2

Step-by-step explanation:

2x^2+3x-20 =0

2x^2+8x-5x-20 =0

2x(x+4)-5(x+4) =0

(x+4)(2x-5) =0

Either,

x+4=0

x=-4

Or,

2x-5=0

2x=5

x=5/2

Answer Link
konrad509
konrad509 konrad509
  • 04-07-2019

[tex]2x^2+3x-20=0\\2x^2+8x-5x-20=0\\2x(x+4)-5(x+4)=0\\(2x-5)(x+4)=0\\x=\dfrac{5}{2} \vee x=-4[/tex]

Answer Link

Otras preguntas

Sibyl has seen four more films than Linda. Linda has seen twice as many films as Joel. If Sibyl has seen s films, then in terms of s, what expression can repres
What is 300,000x10^33
benefits of running in the morning
True or False: You can be arrested for DUI for driving under the influence of a stimulant
which statement best explains the distinction between the roles that dna ligase and restriction enzymes perform in a dna cloning experiment?
the verb to be in spanish
most expensive cities in the us
Andrew Carnegie seemed to be in favor of taxing large estates heavily death. True or False?
What is the potential of a 35kg child sitting at the top of a slide that is 3.5m above the ground? What is her kinetic energy if she moves down the slide at a s
which energy transfer is least likely to be found in nature ? A- consumer to consumer B- producer to consumer C-host to parasite D- predator to prey