Question

ajutati-ma ,va rog
X^2+2x-3
P.S am nevoie si de grafic

Answer 1

$x^{2} +2x-3=0$
Δ=b²-4ac
Δ=2²-4×1×(-3)=4+12=16
$x_{1,2}= \frac{-b+- \sqrt{delta} }{2a}$
$x_1= \frac{-2+4}{2} = \frac{2}{2} =1$
$x_2= \frac{-2-4}{2} = \frac{-6}{2} =-3$