kody69372
kody69372 kody69372
  • 04-04-2020
  • Mathematics
contestada

Solve for x. Write both solutions, separated by a
comma.
9x2 - 4x - 5 = 0

Respuesta :

gamboalnatalie
gamboalnatalie gamboalnatalie
  • 04-04-2020
Answer:

x = -5/9, x = 1
Answer Link
Officialalehpeter
Officialalehpeter Officialalehpeter
  • 04-04-2020

Answer: -5/9 or 1

Step-by-step explanation:

9x2-4x-5=0

Factorise

Factors of -45 that will give-4 is -9&5

Substitute

9x2-9x+5x-5=0

9x(x-1)+5(x-1)=0

(9x+5)(x-1)=0

9x+5=0

9x= -5

X= -5/9 or

X-1=0

X=1

X= -5/9 or 1

Answer Link

Otras preguntas

The Puritan communities in New England in the 1600s mainly emphasized
round 9,254 to the nearest hundred
the building blocks of proteins are known as
In which form of government do delegates speak on behalf of citizens? popular sovereignty authoritarian monarchy representative totalitarian
round 76340 to the nearest thousand
The instantaneous velocity of an object is the blank of the object with a blank
Identify the oblique asymptote of f(x) = quantity x squared minus 4 x plus 8 over quantity x plus 2. y = 0 y = x - 2 y = x - 6 No oblique asymptote
How did the issue of slavery divide the union
how does arachne feel about her weaving skill
example of A function whose domain is [2, infinity]