Question

write in expanfed form (2x+1)³​

Answer 1

Answer:

(a+b)^3=a^3+b^3+3a^2b+3ab^2

(2x+1)^3=(2x)^3+(1)^3+3×(2x)^2×(1)+3×(2x)×(1)^2

= 8x^3 + 1 + 12x^2 + 6x