The base of a rectangular prism with length 12ft and height 5ft. if the volume of the solid is 360ft, find the width.

Width= 6ft3

Step-by-step explanation:

We know that the volume is 360 and we know what the height and length is.

We can work backwards to find what the width is. Take 360 and divide it by 12, that will get you 30. Take 30 and divide that by 5, that will get you 6ft3 as your width.

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form