Question

expand using identity (3x + 7y)

raise to 3​

Answer 1

Answer:

$(3x {})^{3} + (7y {})^{3} + 3 \times 3x \times 7y(3x + 7y)$

Step-by-step explanation:

solve it you get the answer

please mark me as brainlist

Answer 2

we are using identity (a+b)^2=a+2(ab)+b using this identity u wI'll get ur ans . if it's helpful mark it brainlist and follow me