nmeehleib nmeehleib

07-11-2016
Mathematics

contestada

factor 45x^2 - 20y^2.
please show your work.
thanks!

Respuesta :

milumil2000 milumil2000

07-11-2016

45x² - 20y²=5(9x²-4y²)=5(3x+2y)(3x-2y)

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