AznMaster1
AznMaster1
23-08-2017
Mathematics
contestada
Please help me solve this and show the steps
Respuesta :
ajd995
ajd995
23-08-2017
9x^3 + 18x^2 -4x -8
Split the equation into 9x^3 + 18x^2 and -4x -8, then factor
9x^2 (x + 2) -4(x + 2)
So the factors are (9x^2 - 4) and (x + 2)
So X is either equal to -2 or +/- 2/3
Answer Link
choixongdong
choixongdong
23-08-2017
9x^3 - 4x = -18x^2 + 8
9x^3 + 18x^2 - 4x- 8 = 0
9x^2(x +2 )- 4(x + 2) = 0
(x+2)(9x^2 - 4) = 0
(x + 2)(3x + 2)(3x - 2) = 0
x + 2 = 0; x = -2
3x + 2 = 0; x = -2/3
3x - 2 = 0; x = 2/3
Answer Link
VER TODAS LAS RESPUESTAS ( 72+ )
Otras preguntas
4) Which of the following choices best answers this statement: When reactants collide, chemical reactions always occur. A. B. C. True, reactants that come into
What is the intermediate step in the form left bracket, x, plus, a, right bracket, squared, equals, b(x a) 2 =b as a result of completing the square for the fol
What are FOUR key "lessons learned" that you take away from the "Big Dig"? Explain.
What is a major characteristic of a team? 1) Group of people working at the same location 2) Common commitment 3) Nick name such as "Bay Street Demons" 4) Daily
Carol and Sam were using the microscope in science class. They used a dropper to put some pond water on their microscope slide. This is what they saw. "That is
) En qué oración existe coma hiperbática a) Cuando menos pensó, llegó. b) Mañana, tarde y noche, trabajaba c) Ganó, sin embargo, permaneció dormida d) Ay B e) B
China has increased the amount of agricultural land by building __________ along many of the hillsides. A. canals B. villages C. terraces D. windmills Please
Find the value of b that gives the function the maximum value of 11. If there is more than one solution, use the "or" button. f(x)=-x²+bx+2 The value of b is
In a nursery, if one baby starts crying, there is a tendency for the other babies to also start crying. This is an example as ________. 1) emotional contagion 2
Find the volume of each prism and match the volume to the correct prism. The units are understood to be cubic units, but are not included on the numeric answer.
