Răspunsuri

2014-05-07T00:02:50+03:00
⇒ xla puterea 4+x³-8x²+x³+x²-8x+12=(x²-3x-4)(x²+5x+6)
xlaputerea 4+2x³-7x²-8x+12=xla puterea4+5x³+6x²-3x³-15x²-18x-4x²-20x-24
xlaputerea 4+2x³-7x²-8x+12=xla puterea 4+2x³-13x²-38x-24
xla piterea 4-xla puterea 4+2x³-2x³-7x²+13x²-8x+38x+12+24=0
6x²+30x+36=0
6(x²+5x+6)=0
x²+5x+6=0
(x+3)(x+2)=0
x+3=0⇒   X1=-3
x+2=0⇒   X2=-2