Question

（-3a²b³）²×（-a³b²）^5 (-4xy³）×（-

Answer 1

（-3a²b³）²×（-a³b²）^5

=9a^4b^6×﹙-a^15b^10)

=-9a^19b^16

(-4xy³）×（-xy）+（-3xy²）²

=4x²y^4+9x²y^4

=13x²y^4