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Mihail01
a fost răspuns

x2+5x-6=0 rexolvati urgent

Răspuns :

Crisanemanuel
x²+5x-6=0⇔x²+6x-x-6=0⇔x(x+6)-(x+6)=(x+6)(x-1)⇒x=-6;x=1
Helenn
x²+5x-6=0  a=1 b=5 c=-6
Δ=b²-4ac=5²-(-6·4)=25+24=49      √Δ=7
x1=(-5+√Δ)/2a=(-5+7)/2=1
x2=(-5-7)/2=-6
x=1
x=-6

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