ANIMALlove2 ANIMALlove2

02-03-2017
Mathematics

contestada

how do i do the quadratic formula

Respuesta :

ivanhqp ivanhqp

02-03-2017

Quadratic formula is

x = -b + or - sqrt b^2-4ac / 2a

Just plug in your numbers... let's say we have x^2 + 4x + 8 = 0
Plug it in.

x = -(-4) +/- sqrt (4)^2 - 4(1)(8)/2(1)
x = 4 +/- sqrt 16-32 / 2
x = 4+/- sqrt -16/2 (no real solutions)

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