Question

2
X + 5X - 6 = 0

2
X - 7X + 10 = 0

Answer 1

Răspuns:

x²-x+6x-6=0

x(x-1)+6(x-1)=0

(x+6)(x-1)=0

x+6=0=>x=-6

x-1=0=>x=1

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x²-2x-5x+10=0

x(x-2)-5(x-2)=0

(x-5)(x-2)=0

x-5=0=>x=5

x-2=0=>x=2