Question

(x-7y)³ full answer for this question ​

Answer 1

$(x - 7y) ^3 \\( a{}^{3} - b {}^{3} ) = (a {}^{2} + ab - b {}^{2} ) \\ x ^2 + (x)( - 7y) - (7y) {}^{2} \\ x {}^{2} - 7xy - 49y {}^{2}$