Question

Calculați: (2x+3) la puterea 2. (3a+2) la puterea 2. (a la puterea 2+a) la puterea 2. Atât. Mulțumesc.

Answer 1

(2x+3) la puterea 2= 4x patrat +12x + 9
(3a+2) la puterea 2= 9a patrat +12x + 4
(a la puterea 2 +a) = a la puterea 4 + 2a la puterea 3 + a la patrat

Answer 2

$(2x+3)^2=(2x)^2+2 \cdot 2x \cdot 3+3^2=4x^2+12x+9 \\ (3a+2)^2=(3a)^2+2 \cdot 3a \cdot 2+2^2=9a^2+12a+4 \\ (a^2+a)^2=(a^2)^2+2 \cdot a^2 \cdot a+a^2=a^4+2a^3+a^2$