alexisp
alexisp alexisp
  • 17-06-2015
  • Mathematics
contestada

Evaluate the expression (4x^3y^-2)(3x^-2 y^4) for x = –2 and y = –1.

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Panoyin
Panoyin Panoyin
  • 18-06-2015
[tex](4x^{3}y^{-2})(3x^{-2}y^{4}) \\(4(-2)^{3}(-1)^{-2})(3(-2)^{-2}(-1)^{4}) \\(4(8)(\frac{1}{(-1)^{2}})(3(\frac{1}{(-2)^{2}})(1)) \\(32(\frac{1}{2}))(3(\frac{1}{4})(1)) \\(16)(\frac{3}{4}(1)) \\(16)(\frac{3}{4}) \\12[/tex]
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