algebra?????

a45totheface: algebra?????
quadratic formula?!?

solve with it—>

2x^2+5x-4=0

anyone know the answer?

Answers and Views:

Answer by Ask If you want to know
2x^2+5x-4=0

Discriminant = 5^2 -4(-4)(2) =
25 +32 = 57

x1 = (-5 + sqrt(57) )/4
x2 = (-5 – sqrt(57) )/4

Answer by Pi R Squared
Hi,

The quadratic formula is:
………______
-b ± √b² – 4ac
——————- = x
………2a

For 2x² + 5x – 4 = 0, a = 2, b = 5 and c = -4. The formula is:
………_________
-5 ± √5² – 4(2)(-4)
————————- = x
………2(2)
………______
-5 ± √25 + 32
——————- = x
………4

………__
-5 ± √57
———— = x <== ANSWERS
…..4

I hope that helps!! 🙂

Answer by claudia h
x= 1/4(-5-sqrt57)
x=1/4 (-5+sqrt57)

=] those are the two solutions