LOVEMATHLOL
LOVEMATHLOL
09-07-2017
Mathematics
contestada
find (2x^2-4)-(5x^2+2)+(7x^2-5)
Respuesta :
JoshEast
JoshEast
09-07-2017
( 2x² - 4) - ( 5x² + 2 ) + ( 7x² - 5) = ( 2x² - 4 - 5x² - 2 + 7x² - 5)
= (2x² - 5x² + 7x² - 4 - 2 - 5)
= 4x² - 11
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