Question

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

Answer 1

I don’t know the answer sorry

Answer 2

15x5−x4−2x3+21x2+7x

Explanation:

=(3x2+x)(5x3+−2x2+7)

=(3x2)(5x3)+(3x2)(−2x2)+(3x2)(7)+(x)(5x3)+(x)(−2x2)+(x)(7)

=15x5−6x4+21x2+5x4−2x3+7x

=15x5−x4−2x3+21x2+7x