Question

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

Answer 1

a ) x² - 6x + 9 =(x-3)la a 2 b) 25x²+ 10x + 1 = (5x+1) la a 2 c) 4(x-1)²- 4(x-1)²+1 =(x-1)la a 2 (4-4)+1=(x-1)la a 2+1 d) x²-6x + 2(x-3 )(y+1)+y²+2y+10= trebuie sa le grupezi e) a la puterea a 4 +2a²+1 =a la a 2 (4a la a 2 plus 2 a la a 2 a +1)=a la a 2 a (6 a la a 2 a +1)