Question

What is the product?
(x^4)3x^3-2)(4x^2 +5x)?

Answer 1

`\left(x^4\right)\left(3x^3-2\right)\left(4x^2+5x\right)`

`(3x^(3) -2)(4x^(2) +5x)`

`12x^5+15x^4-8x^2-10x`

`\left(x^4\right)\left(12x^5+15x^4-8x^2-10x\right)`

`=12x^9+15x^8-8x^6-10x^5`

Therefore, A is your answer

~~OAmalOHopeO

Answer 2

`{ \tt{( {x}^(4))(3 {x}^(3) - 2)(4 {x}^(2) + 5x) }} \\ = { \tt{( {x}^(4))( {12x}^(6) + 15 {x}^(4) - 8 {x}^(2) - 10x) }} \\ = { \tt{( {12x}^(24) + {15x}^(16) - {8x}^(8) - {10x}^(5) ) }}`