？ [(-1)^21]×(-3)×(2/3) + (-3/2)³×(-4/3)²÷(-1/2) - 3² - (-3)²
=(-1)×(-3)×(2/3) + (3/2)³×(4/3)²×2 - 9 - 9
=2 + [(3/2)×(4/3)]²×[(3/2)×2] -18
=2 + 4×3 -18 = -4；
？ (-3)² - (3/5) × [3×(-2/3)² -1^4] + 8×[(1/2)² - (1/2)³ -1]
=9 - (3/5)×[(4/3) -1] + 8×[(1/4) - (1/8) -1]
=9 - (3/5)×(1/3) + 8×(7/8)
=9 -(1/5) +7 = 15.8
是否可以解决您的问题？
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