Question

2/x²-1 - 2= x/x-1 formula de baskara pfvr

Answer 1

A = 1
B = 1
C = -1

$\frac{-b+- (raiz de delta)}{2.a}$, onde ∧ = b^{2} -4.a.c
$\frac{-1+- (raiz de 9)}{2.1}$
X' = $\frac{1+3}{2} = \frac{4}{2} = 2$
X'' = $\frac{1-3}{2} = \frac{2}{2} = 1$