Question

(x+1)^3 -1 =7 Cum rezolv problema asta fara polinoame?

Answer 1

$(x+1)^3-1=7 \\\\ (x+1)^3=7+1 \\\\ (x+1)^3=8 \\\\ (x+1)^3=2^3 \\\\ x+1=2 \\\\ x=2-1 \\\\ \boxed{x=1}$