danny9935 danny9935
  • 18-02-2019
  • Mathematics
contestada

What are the solutions to 2x^2+7x=4? Select all that apply

A.1/2
B.4
C.-1/2
D.-4
E.7
F.-7

Respuesta :

hroscoe
hroscoe hroscoe
  • 18-02-2019
The answers are A and D

You would first see if u can factor the equation:
First move the 4 over and set equation =0
2x^2+7x -4 = 0; next factor:
(2x - 1)(x + 4); now set each set of parentheses equal to 0:
2x-1= 0
2x=1, so x= 1/2

x+4=0
X=-4
Answer Link

Otras preguntas

AP euro Renaissance Chapter 12.2 1350-1550
In the opening pages of the novel how does Montag feel about his role as a fireman
Evaluate 3/7 of 581 - 0.35 x 480 Anyone know how to work it out????
BRAINLIST AND 100 POINTS You will use creative storytelling techniques to show your understanding of the rock cycle. You should choose a type of rock and determ
Please help me pleasePlease help me please
Julio enters the hospital with a brace protecting his cervical region. Which type of injury does Julio most likely have? a brain injury a neck injury an arm inj
A balloon contains 46.3 L of Helium at 42 oC, and 2.01 atm is released into the air. At a certain altitude, the temperature falls to 21 oC, and the pressure fal
what are the tools used in mulching?​
A special spring is constructed in which the restoring force is in the opposite direction to the displacement but is proportional to the cube of the displacemen
A bird flies 4 m south and 3 m west. What is the magnitude of the birds total displacement in m?