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

Write equation in function form 4x+y=10
how come some girls don't get period cramps?
Which of the following did NOT grow or increase as a result of early farming? villages trade life spans cities
three consecutive even integers have a sum of 168. what's the value of the largest integer?
how to Express each decimal as a fraction or a mixed number in a simplest form ? I need help with -0.14
Rectangular classroom seats 72 students. If the seats were rearragned with 3 more seats rows in each row, the classroom would have 2 fewer rows. Find the origin
Who was the so-called new middle-class? What was the role of expertise and organization in this new professionalism?
Write equation in function form 4x+y=10
Write y= 3/4x + 1/2 in standard form. Thanks in advance. Also, could you please briefly explain how you did it, because these questions confuse me. Thank you. A
1/3(9x+27)-4=1/2(2x+54)