Question

PLEASE HELP NEED THE ANSWER IMMEDIATELY!

Answer 1

`\textsf{\qquad\qquad\huge\underline{{\sf Answer}}}`

Volume of a rectangular prism is ~

`\sf{Volume_(cuboid)= Length × Width × Height}`

`\qquad \sf  \dashrightarrow \: v = (4x + 2) * (3x - 5) * (7x + 4)`

`\qquad \sf  \dashrightarrow \: v = (12 {x}^(2) - 20x + 6x - 10) * (7x + 4)`

`\qquad \sf  \dashrightarrow \: v = (12 {x}^(2) - 14x- 10) * (7x + 4)`

`\qquad \sf  \dashrightarrow \: v = 84 {x}^(3) + 48 {x}^(2) - 98x {}^(2) - 56x - 70x - 40`

`\qquad \sf  \dashrightarrow \: v = 84 {x}^(3) - 50 {x}^(2) - 126x - 40`

So, the correct choice is B