Multiply these polynomials.

(5x2 + 2x) (3x2 - 7x + 4)

A. 15x4 - 29x3 + 20x2 + 8x

B. 15x4 - 35x3 + 6x2 + 8x

C. 15x4 - 29x3 + 6x2 + 8x

D. 15x4 - 35x3 + 20x2 + 8x

When we multiply the polynomials we will get:

(5x^2+2x) (3x^2-7x+4)

=5x^2 (3x^2-7x+4) + 2x (3x^2-7x+4)

=15x^4-35x^3+20x^2+6x^3-14x^2+8x

=15x^4 + (6x^3-35x^3) + (20x^2-14x^2) + 8x

=15x^4-29x^3+6x^2+8x

The correct answer is C