4x^2+3x+1=0?

0 ⤊

a) Give the discriminant for the quadratic equation.

b) State the nature of the roots.

2007-08-31 10:10:46 · 3 answers · asked by erin j 2 in Science & Mathematics ➔ Mathematics

3 answers

Part a)
x = [- 3 ± √(9 - 16)] / 8
x = [- 3 ± √ ( - 7) ] / 8
x = [- 3 ± i √ 7 ] / 8
Discriminant = [ - 3 ± i √7 ]

Part b)
Roots are:-
(- 3 ± i √(7) ) / 8
Both roots are imaginary.

2007-09-04 06:05:55 · answer #1 · answered by Como 7 · 0⤊ 0⤋

(-b+â(b^2-4ac))/2a

(-b-â(b^2-4ac))/2a

Have you learn complex numbers?

2007-08-31 17:25:47 · answer #2 · answered by Snow 1 · 0⤊ 0⤋

hmmmmm is this ur homework?

2007-08-31 17:17:45 · answer #3 · answered by ♥ 5 · 0⤊ 0⤋