Question

(2x + 1)^2 + (3x-1)^2 URGEENT MS

Answer 1

$(2x + 1) {}^{2} = 4x {}^{2} + 4x + 1 \\ (3x - 1) {}^{2} = 9x {}^{2} - 6x + 1 \\ 4x {}^{2} + 4x + 1 + 9x {}^{2} - 6x + 1 = \\ 13x {}^{2} - 2x + 2 = \\ x(13x - 2) + 2$

Answer 2

$4x {}^{2} + 4x + 1 + 9x {}^{2} - 6x + 1 \\ = 13x {}^{2} - 2 x + 2$
asta e tot. e lectia descompuneri in factori nu?