脱式计算:(1):-2X-3Y+5-7Y+3X-5 (2):5X^3+2X^2Y+8X^3-4YX^2+3Y-1
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脱式计算:(1):-2X-3Y+5-7Y+3X-5(2):5X^3+2X^2Y+8X^3-4YX^2+3Y-1脱式计算:(1):-2X-3Y+5-7Y+3X-5(2):5X^3+2X^2Y+8X^3-
脱式计算:(1):-2X-3Y+5-7Y+3X-5 (2):5X^3+2X^2Y+8X^3-4YX^2+3Y-1
脱式计算:(1):-2X-3Y+5-7Y+3X-5 (2):5X^3+2X^2Y+8X^3-4YX^2+3Y-1
脱式计算:(1):-2X-3Y+5-7Y+3X-5 (2):5X^3+2X^2Y+8X^3-4YX^2+3Y-1
(1):-2X-3Y+5-7Y+3X-5
=(-2+3)X+(-3-7)Y+(5-5)
=X-10Y
(2): 5X^3+2X^2Y+8X^3-4YX^2+3Y-1
=(5+8)X³+(2-4)X²Y+3Y-1
=13X³-2X²Y+3Y-1
脱式计算:(1):-2X-3Y+5-7Y+3X-5 (2):5X^3+2X^2Y+8X^3-4YX^2+3Y-1
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