alexpmedlin alexpmedlin
  • 01-11-2019
  • Mathematics
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i don’t understand this

i dont understand this class=

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a5904640
a5904640 a5904640
  • 01-11-2019

You have to multiply whats outside the parenthesis with everything that is inside, so

[tex]x^{-3}y^0.(x^2-3x^5y^4)[/tex]

[tex]x^{-3}y^0.x^2-x^{-3}y^0.3x^5y^4[/tex]

Multiplication of same bases we sum the exponents

[tex]x^{-3+2}y^0-3x^{-3+5}y^{0+4}[/tex]

[tex]x^{-1}.1-3x^2y^4[/tex]

[tex]x^{-1}-3x^2y^4[/tex]

Alternative B.

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