Question

1. Factorise. (1) x + 64y^3​

Answer 1

Answer:

$(x + y)(x ^{2} + (x)(4y) + (4y) )^{2}$

Step-by-step explanation:

$(x + 4y) ^3 \\ =( x ^3) - (4y) ^3$

$= (x + 4y)((x ^{2} + (x)(4y) + (4y) ^{2}$