emilymorgan1
emilymorgan1
13-04-2016
Mathematics
contestada
How do I factor -8X^2+200?
Respuesta :
Panoyin
Panoyin
13-04-2016
8x² + 200
-8(x²) - 8(-25)
-8(x² - 25)
-8(x² + 5x - 5x - 25)
-8(x(x) + x(5) - 5(x) - 5(5))
-8(x(x + 5) - 5(x + 5))
-8(x - 5)(x + 5)
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