What are the roots of the quadratic equation 0= 8x^2+14x ?

Question

23-03-2016
Mathematics

contestada

What are the roots of the quadratic equation 0= 8x^2+14x ?

Respuesta :

Otras preguntas

Maria is tossing a fair coin. She tosses the coin ten times and it lands on heads eight times. If Maria tosses the coin an eleventh time, what is the probabilit

The density of mercury is 13.6 g/mL. What is the volume of a 155-gram sample of mercury?

What city was hephaestus patron of ???

A test tube containing CaCO₃ is heated until the entire compound decomposes. If the test tube plus calcium carbonate originally weighed 30.08 grams and the loss

What reasons does Palmer give to justify the arrest of communists in the United States?

who was not free in medieval England

Which sentence does not contain any punctuation errors? A. I thought of you when I read these words of Shakespeare; “The fool doth think he is wise, but the wi

How do you do 81x^2=49

How are boundaries between river systems and natural vegetation regions different?

RASEA23 RASEA23 · Answer 1 · 2016-03-23T23:17:39+01:00

RASEA23 RASEA23

23-03-2016

8x^2+14x=0
Take 2x as a common factor:
2x(4x+7)=0
Take 2 cases:
2x=0 or 4x+7=0
2x=0 x=0
4x+7=0 4x=-7 x=-7/4

The roots are 0 or -7/4.

Hope this helps :)

Answer Link