Abbate4498 Abbate4498
  • 04-05-2018
  • Mathematics
contestada

What are the x intercepts of this function f(x) =2x^2-7x-4?

Respuesta :

ktreyb
ktreyb ktreyb
  • 04-05-2018
2x² - 7x - 4 = 0
2x² - 8x + x - 4 = 0
2x(x - 4) + 1(x - 4) = 0

(2x + 1)(x - 4) = 0

Set each binomial equal to zero. 

2x + 1 = 0
2x = - 1
x = - 1/2

x - 4 = 0
x = 4

Your x-intercepts are x = - 1/2, 4 or (- 1/2, 0) and (4, 0)
Answer Link

Otras preguntas

2 and 3/4 x 1 and 1/3
The main participants at the Paris Peace Conference were ( 1 ). The main objective of the Peace Conference was to ( 2 ).1:a. The Lea
1. Which statement illustrates the identity property of multiplication? a. 7+0=7 b. 7+1=8 c. 7*1=7 d. 7*0=0 2. Which statement illustrates the identity property
The tibia, or shin bone, has a large bump on the top that allows for ligaments to connect to the knee. What is this projection called? foramen fossa tubercle ir
What problem is caused by maps being two-dimensional
can someone find the solution to the system of equations
A pet store has 32 more dogs than cats. If there are a total of 144 dogs and cats altogether, then how many cats does the pet store have?
need help with this question pls help
OF Bisects EOG. M EOF = y+ 30 and M FOG = 3y - 50. Solve for y
What scale factor is shown in the graph?