Question

qual o resultado desta conta por favor
$x^{2} +5x+6=0$

Answer 1

$x^{2} +5x+6=0$

Δ=b²-4ac
Δ=25-24
Δ=1
√Δ=√1
√1=± 1

$x'= \frac{-5+1}{2} =- \frac{4}{2}=-2$

$x"= \frac{-5-1}{2} =- \frac{6}{2}=-3$

S={-3,-2}

Answer 2

x²+5x+6=0
Δ= b² - 4ac
Δ= 5² - 4 .1.6
Δ=25 - 24 
Δ=1

x= -b +/- √Δ / 2a
x= -5 + √1 / 2.1
x'= -5+1/2
x'= -4/2
x'= -2

x''= -5 -1/2
x''= -6/2
x''= -3