Question

(7х + 8ч)³​

Exapand it ....!!
With steps and reason ....​

Answer 1

Answer:

(7x + 8y)3 =(7x)3 + [ 3 ×(7x)2 ×(8y)] + [ 3 ×(7x)×(8y)2 ] + (8y)3

{ ∵ (a + b)3 = a3 + 3a2b + 3ab2 + b3 }

= 343x3 +(3 × 49 × 8)x2y +(3 × 7 × 64)xy2 + 512y3

=343x3 + 1176x2y + 1344xy2 + 512y3

Answer 2

Answer:

i tink it is right answer 1st one hwsbdhjx