marshallellison marshallellison

07-06-2017
Mathematics

contestada

Solve this quadratic equation using the quadratic formula.

x2 + 8x - 5 = 0

Respuesta :

09-06-2017

x^2 + 8x - 5 = 0
a = 1, b = 8, c = -5
x = ( - 8 + - sqrt(64 - 4*1*-5))/2
x = ( -8 + - sqrt(64+20))/2
x = ( -8 + - sqrt (84))/2
x = ( - 8 + - 2sqrt21))/2
x = -4 + - sqrt21

Answer Link

Otras preguntas

how did queen Elizabeth affect the plays in england

at the beginning of the play, Oedipus listens as citizens complain of a problem. What is this problem?

Which one of the following elements does not exist as a diatomic molecule in nature? (a) hydrogen (b) nitrogen (c) fluorine (d) neon

Explain why dogs pant during hot summer days using the concept of evaporation?

there are 4 types of loans what are they describe them

what is pie cubed divided by 546

The length of a rectangular mural is 2ft. more than three times the width the area is 165 sq. ft. Find the Width And Length

why are cubes and spheres called solid figures?

I need answer to this question

What causes wind to deposit sand or other sediment