Răspunsuri

2014-08-25T12:50:44+03:00
= (5x-3)(5x+3)

= (3x-2+2x)(
3x-2-2x)

= (x+ √7)(x-√7)

= x² + (6+1)x + 6 = x² + 6x + x + 6 = x(x+6) + 1 (x+6) => (x+1)(x+6)

 = (x+5)²

1 5 1