Math help- multiplying monomials by polynomials

The stuff in the brackets are exponents. I was wondering if I did these right:

(4m [2] n) (2mn[4])=8m[3]n[5]

7g(g-5)=7g[2]-35

2ab(3a[2]b+3ab[2])=6a[3]b[2]+6a[2]b[3]

M(x+3)=mx+3

X2= x[4]-4x[3]+9

-3wz(5w4z[2])= -15w[5]-12z[3]

Thank you for your help!!!

Answer #1

(4m [2] n) (2mn[4])=8m[3]n[5] - yes

7g(g-5)=7g[2]-35 - no = 7g[2]-35g

2ab(3a[2]b+3ab[2])=6a[3]b[2]+6a[2]b[3] - yes

m(x+3)=mx+3 - no - mx+3m

Answer #2

um the second one should be 7g[2]-35g the fourth one should be mx+3m and the fifth shound be x[4]-4x[3]+9x[2]

Answer #3

Dannng!!! Whoever gave you that problem should get smacked!!!

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