Multiply.

3 х2 - 7 х + 4

5 х2 + 2 х

А. 15 х4 - 35 х3 + 20 х2 + 8x

ов. 15 - 35 х3 + 6 х2 + 8x

Ос. 15 х4 - 29 х3 + 20 х2 + 8x

OD. 15 х4 - 29 х3 + 6 х2 + 8x

option D

Step-by-step explanation:

we have from statement:

(3 х2 - 7 х + 4) * (5 х2 + 2 х)

we apply distributive property:

3 х2 * 5x2 + 3x2 * 2x - 7x * 5x2 - 7x * 2x + 4 * 5x2 + 4 * 2x

so we have:

15x4 + 6x3 - 35x3 - 14x2 + 20x2 + 8x

finally we have:

15x4 - 29x3 + 6x2 + 8x