2x⁴(2x² + 3x + 4)
Simplify.
4x⁶ + 6x⁵ + 8x⁴ ==> The second answer choice.
We know this because :
Multiply 2x⁴ with 2x²
2x⁴ × 2x² = 4x⁶
Then, do :
2x⁴ × 3x = 6x⁵
Then, finally, do :
2x⁴ × 4 = 8x⁴
So, our answer looks like this :
4x⁶ + 6x⁵ + 8x⁴
~Hope I helped!~