Question

$(x + 1) {}^{2}$
$(1 + x) {}^{2}$
$(2 \alpha + 3) {}^{2}$
pe lung te rog
‍
dau 30 puncte​

Answer 1

$(x+1)^{2}$=$x^{2}$+ 2*x*1 + $1^{2}$ = $x^{2}$+2x+1

$(1+x)^{2}$=$1^{2}$ + 2*1*x + $x^{2}$ = 1+2x+$x^{2}$

$(2\alpha +3)^{2}$= $2^{2}$ * $\alpha ^{2}$ + 2*2$\alpha$*3 + $3^{2}$ = 4$\alpha ^{2}$ + 12$\alpha$ + 9

Answer 2

sper ca la rezolvarea asta te refereai!
succes in continuare:))