👤

Descompuneti in factori: a)x la puterea 2+3x+2 b) x la puterea 2+5x+4

Răspuns :

[tex] x^{2} [/tex]+3x+2=[tex] x^{2} [/tex]+x+2x+2=x(x+1)+2(x=1)=(x+1)(x+2)

[tex] x^{2} [/tex]+5x+4=[tex] x^{2} [/tex]+x+4x+4=x(x+1)=4(x+1)=(x+1)(x+4)
a)x²+3x+2
x²+x+2x+2
x(x+1)+2(x+1)
(x+1)(x+2)
b)x²+5x+4
x²+x+4x+4
x(x+1)+4(x+1)
(x+1)(x+4)
SPER CA TE-AM AJUTAT!