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Descompuneti in factori :
a) x la puterea 2 - 5x + 6
b) x la puterea 2 - 81
c) x la puterea 2 + x -2

REPEDE VA ROOOG !!! E URGEEEENT


Răspuns :

a)5x: 6-2=4
x= 5:4=
x=1,25
1,25x
b) 2,00- 0,81= 1,19
1,19x
c) x=2-2=0x
a)x²-5x+6=x²-2x-3x+6=
x(x-2)-3(x-2)=(x-2)(x-3)

b) x²-81=x²-9²=(x-9)(x+9)

c)x²+x-2=x²-x+2x-2=
x(x-1)+2(x-1)=(x-1)(x+1)