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SUMAS DE POLINOMIOS:
b) (4a²+2ab+5b)+(6a²-7ab)
4a²+6a²+2ab-7ab+5b
10a²-5ab+5b
c) (-15mn²+6m²n-9m) + (-13m²n-2m+3)
-15mn²- 13m²n - 9m - 2m-15mn²+3
-28mn² - 11m -15mn² - 3
f) (8a³-b³) + (-5b³-)
(8a³-)+(b³-5)
RESTAS DE POLINOMIOS:
b) (24a²b - 6ab - 5) - (-7a²b - 5ab -8)
24a²b-(-7a²b) - 6ab - (- 5ab) - 5 - (-8)
31a²b - ab + 3
e) (-ab² + 8a²b) - (2/5 ab - 4/3 a²b)
-ab² - 2/5 ab + 8a²b - (- 4/3 a²b)
-7/5ab² + 28/3a²b
f)
NOTA: Recuerda multiplicar adecuadamente los signos, signos iguales se suman y los diferentes de restan, y:
(+ × +) = +
(+ × -) = -
(- × -) =+