Question

 (5x2 +7x +8) +(3x+9)  (4m2 -2mn-5n) +( 6m2+7mn)  (-9a3b2 + 7a2b -6) +( 12a3b2 – 9 a2b -5)  (-15xy2 + 8x2y - 9x) + (-18x2 y -3x +6)  (1/2 m3 – 2/3 m2) +(-2/5m3 +1/6 m2)  (3/4a2b -1/7ab2 ) +(1/6a2b +3/2ab2)  (-12x3y2 +5x2y3 -9) + (-8/3 x3y2 +4/7)  (8m3n4 -2/7 m4n3) + (-5m4n3 +1/3m3n4)

Answer 1

Respuesta:

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