How do you multiply #(- 4x ^ { 3} y ^ { - 5} ) ( 6x ^ { - 3} y ^ { 8} )#?

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Answer 1 · 2018-04-03T04:29:54

#=> -24y^3#

You multiply terms that are similar #x#'s with #x#'s, #y#'s with #y#'s.

When you multiply terms with powers, the powers are summed.

#=>(-4x^3y^-5)(6x^-3y^8)#

#=> (-4)(6)x^(3+(-3))y^(-5 + 8)#

#=> -24 x^0 y^3#

#=> -24(1)y^3#

#=> -24y^3#