9. Multiply the polynomials.(4b2z2+4bz)(−2b3z−2z3+6z2+5z)
−8b5z3−8b2z5+24b2z4+20b2z3−8b4z2−8bz4+24bz3+20bz2
Step 1 :(4b2z2+4bz)(−2b3z−2z3+6z2+5z)
Step 2 :4b2z2(−2b3z−2z3+6z2+5z)+4bz(−2b3z−2z3+6z2+5z)
Step 3 :−8b5z3−8b2z5+24b2z4+20b2z3−8b4z2−8bz4+24bz3+20bz2