Question

expand (2a+3b)³
i will mark as brainlist answer​

Answer 1

Answer:

$(2a + 3b) {}^{3} \\ we \: know \: that - \\ (a + b) {}^{3} = a {}^{3} + b {}^{3} + 3ab(a + b) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = (2a) {}^{ 3} + (3b) {}^{3} + 3 \times 2a \times 3b(2a + 3b) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 8a {}^{3} + 27b {}^{3} + 36a {}^{2} b + 54ab {}^{2}$