katelynconley20 katelynconley20
  • 07-04-2017
  • Mathematics
contestada

solve for x. write both soultions separated by a comma
7x^2+5x-2=0

Respuesta :

SUSHIS0
SUSHIS0 SUSHIS0
  • 07-04-2017
x= 2/7, x= -1
hope this helps you.
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 07-04-2017
7 times -2=-14
7 and -2 adds to 5

7x²+7x-2x-2=0
(7x²+7x)+(-2x-2)=0
7x(x+1)-2(x+1)=0
undistribute
(7x-2)(x+1)=0

set to zero

7x-2=0
7x=2
x=2/7

x+1=0
x=-1

x=2/7,-1
Answer Link

Otras preguntas

8x(3x2-8)+10 what does his mean?
Explain how fossils and other materials can tell us about the conditions of an area at the time it existed. Then explain how you would find the ages of these fo
what is the size range of a eukaryotic cell
What is a fraction for 6.125
consumer math help!!!??????? Pic attached
PLEASE HELP!!! THERE IS A PICTURE ATTACHED Francisco is playing a game with 3 green, 2 yellow, 4 red, and 3 black marbles in a bag. He has calculated the proba
sharon and jason went for a walk then a bike ride. what is the complete predicate of this sentence ?
The theory of a land bridge between South America and Africa as an explanation for similar fossils on the two continents is not supported today because _____.
How was the African Iron Age different from other religions
A collision between two pieces of continental crust at a converging boundary produces a
good job