Question

expand (2x+1)^3

Answer 1

Would you like to use the Binomial Theorem here?

Answer 2

\[(2x+1)^3=(2x+1)(2x+1)(2x+1)\]

Answer 3

\[1(2x)^3(1)^0 +3(2x)^2(1)^1 + 3(2x)^1(1)^2 + 1(2x)^0(1)^3 \]

Answer 4

@UnkleRhaukus is right, but who'd like to multiply that much? :P

Answer 5

\[=(4x^2+4x+1)(2x+1)\]

Answer 6

\[\implies 2x(4x^2 + 4x + 1) + 1(4x^2 + 4x + 1)\]

Answer 7

easy

Answer 8

\[(2x +1)^3\]=\[(2x)^3+(1)^3+3xy(2x+1)\]

Answer 9

and then solve it @shaqadry

Answer 10

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

Answer 11

Or Use pascal Triangle to find its Coefficient

Answer 12

thank you everyone!