Question

Expand (3x-4y)³



plz solve​

Answer 1

Answer:

Your answer is on the above attachment

Step-by-step explanation:

Hope this helps you.

Answer 2

$(a - b) ^{3}  = a ^{3}  - 3 {a}^{2} b + {3ab}^{2}  - {b}^{3}$

$(3x - 4y) ^{3} = {3x}^{3} - 3 \times {3x}^{2} \times 4y + 3 \times 3x \times {4y}^{2} - {4y}^{3} \\ \\ (3x - 4y) ^{3} = 27 {x}^{3} - 3 \times {9x}^{2} \times 4y + 9x \times {8y}^{2} - 64{y}^{3} \\ \\ (3x - 4y) ^{3} = {27x}^{3} - 27 {x}^{2} \times 4y + 72x {y}^{2} - 64y ^{3} \\ \\ (3x - 4y) ^{3} = {27x}^{3} - {108x}^{2} y + {144xy}^{2} - {64y}^{3}$