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Dyayoo2001
a fost răspuns

Descompuneti in factori:
a) x² - 6x+9
b) 25x² + 10x +1
c) 4(x-1)² - 4(x-1) + 1
d) x² - 6x + 2(x-3)(y+1) + y² + 2y + 10
e)a la puterea 4 + 2a² + 1

Răspuns :

a) (x-3)²
b)(5x+1)²
si restul nu mai stiu 


Miha1107
a)(x-3)²
b)(5x+1)²
c)(x-1)(4x-4-4)+1=(x-1)(4x-8)+1=4x²-8x-4x+8+1=4x²-12x+9=(2x-3)²
d)x²-6x+(2x-6)(y+1)+y²+2y+10=x²-6x+2xy+2x-6y-6+y²+2y+10=x²+y²-4x-4y+2xy+4=(x+y-2)²
e)(a²+1)²