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TatiaTatyana
a fost răspuns

Descompuneti in factori
a) x la puterea a doua+7x+12=
b)x la puterea a doua+8x+15=
c)x la puterea a doua+12x+35=
d)xla puterea a doua+11x+18=

Răspuns :

Renatemambouko
a) x²+7x+12=x²+3x+4x+12=x(x+3)+4(x+3)=(x+3)(x+4)
b)x²+8x+15=x²+3x+5x+15=x(x+3)+5(x+3)=(x+3)(x+5)
c)x²+12x+35=x²+7x+5x+35=x(x+7)+5(x+7)=(x+7)(x+5)
d)x²+11x+18= x²+2x+9x+18=x(x+2)+9(x+2)=(x+2)(x+9)






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