[-5 +/- sqrt(25 + 40) ] / 4
(1/4)(-5 + sqrt(65) )
(1/4)(-5+8.06)
(1/4)(3.06) = .766
Find the positive root of 2x^2-5x-5=0
3 answers
I meant to put 2x^2-5x-3=0
(x-3)(2x+1) = 0
x = 3 since x = -1/2 is negative
x = 3 since x = -1/2 is negative
1 answer