Respuesta: =5646
Explicación paso a paso:
A)( 5x2-7x-8)+(-3x-9) = - 17
B) (4a2+2ab+5b)+(6a2-7ab) = 20a - 5ab + 5b
C)(-15mn2+6m2n-9m) +(-13m2n-2m+3) = -44mn - 11m + 3
D) (1/2m3-2/3m2)+(-2/5m3÷1/6m2) = 1/6m - 3,6
E) (-6x3y2+7x2y3-9)+(-8/3x3y2+7/4) = 6xy - 48/3xy - 29/4 = - 10xy - 29/4
F) (8a3b4-2/7a4b3)+(-5a4b3-1/3a3b4) = 648/7ab + 56ab = 1040/7ab
Espero te haya servido :3
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Respuesta: =5646
Explicación paso a paso:
A)( 5x2-7x-8)+(-3x-9) = - 17
B) (4a2+2ab+5b)+(6a2-7ab) = 20a - 5ab + 5b
C)(-15mn2+6m2n-9m) +(-13m2n-2m+3) = -44mn - 11m + 3
D) (1/2m3-2/3m2)+(-2/5m3÷1/6m2) = 1/6m - 3,6
E) (-6x3y2+7x2y3-9)+(-8/3x3y2+7/4) = 6xy - 48/3xy - 29/4 = - 10xy - 29/4
F) (8a3b4-2/7a4b3)+(-5a4b3-1/3a3b4) = 648/7ab + 56ab = 1040/7ab
Espero te haya servido :3