Question

X²+x-2=0

Me ajuda pfvrr

Answer 1

X^2+X-2=0

a=1 b=1 c=-2

X=-b+-raíz de:b^2-4ac/2a

X=2+-raíz de:1^2-4*1*(-2)/2*1

X=2+-raíz de:9/2

X1=2+3/2 X2=2-3/2
X1=5/2 X2=-1/2