Question

2x^2=-5-7x formula de baskara

Answer 1

2x^2=-5-7x
2x^2+7x+5=0
delta=b^2-4ac
delta=7^2-4.2.5
delta=49-40
delta=9
x=-b-/+ raiz de delta/2a
x=-7-3/2.2
x=-10/4 (:2)
x=-5/2
x=-7+3/2.2
x=-4/4
x=-1