Question

expand and simplify
(b) (3m+1)cube​

Answer 1

Answer:

(3m+1)³

(3m+1)(3m+1)(3m+1)

27m+1

Answer 2

Answer:

given,

[(b)(3m+1)]³

[(b×3m+b×1)]³

[(3mb+b)]³

it's in the form of (a+b)³

=a³+b³+3a²b+3ab²

so,a=3mb;b=b

substitute in the equation

(3mb)³+b³+3(3mb)²b+3(3mb)b²

27m³b³+b³+3(9m²b²)b+3(3mb³)

27m³b³+b³+27m²b³+9mb³so,answer is

27m³b³+b³+3(9m²b²)b+3(3mb³)