using complete sentences, explain how you would use quadratic formula to solve x^2 +5x=-2. why is the quadratic formula the best method to use ? (7 points)

Question

nurali · Answer

http://openstudy.com/study#/updates/4f0dabfee4b084a815fce174

anonymous · Answer

doesnt say how to solve it

ivettef365 · Answer

http://www.mathwarehouse.com/quadratic/the-quadratic-formula.php

anonymous · Answer

I dont need that

nurali · Answer

x^2 + 5x +2 = 0

Formula:

x=-b+-Sqrt(b^2-4ac)/2a
your coefficients are
a = 1
b = 5
c = 2

then, use the formula and you get

x1 = [ -5 + sqrt( 25 - 8) ] / 2 = -0.4384	
x2 = [ -5 - sqrt( 25 - 8) ] / 2 = -4.5616

anonymous · Answer

if its decimals its wrong my teacher said

anonymous · Answer

@Nurali

nurali · Answer

http://www.wolframalpha.com/input/?i=x%5E2+%2B+5x+%2B2+%3D+0