Abbate4498 Abbate4498

04-05-2018
Mathematics

contestada

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

Respuesta :

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

The perimeter of a rectangle is 222 millimeters if the length of the rectangle is 60 millimeters what is the width of the rectangle

find the factors of x^3 + z^3

Express 0.64 as a fraction in lowest term? A. 64/10 B.5/32 C.4/5 D.16/25

What is the exact volume of a cylinder that has a height of 1.8 ft and a radius of 6.1 ft? _____π ft³

Which was a major source of conflict between the Ottoman and Safavid empires? A. Most inhabitants of one empire were Shi'a Muslims and most in the other empire

What are the square roots of 324? A. 162 and –162 B. 19 and –19 C. 18 and –18 D. 16 and –16

What did Francis Cabot Lowell and Samuel Slater have in common? Their inventions allowed the U.S. economy to decrease dependence on slaves. Their inventions mad

write 16/10 in simplest form

Please help with this! Jen is deciding to get a new phone. One deal is a free phone with a two year contract, but she will have to pay the sales tax of 8% on th

What is the simplest form 60:180?