19. simplify (-3a^3b^4c^2) ^3
a.27a^9 b^12 c^6
b.-27a^6 b^7 c&5
c.27a^6 b^7 c^5
d.-27x^2-3x-2
please help me simplify?
2009-02-18 3:24 pm
回答 (2)
2009-02-18 3:34 pm
✔ 最佳答案
(-3a^3b^4c^2) ^3=-27a^9b^12c^6
2009-02-18 11:28 pm
(-3a^3b^4c^2)^3
= (-3)^3 * (a^3)^3 * (b^4)^3 * (c^2)^3
= (-27) * a^(3 * 3) * b^(4 * 3) * c^(2 * 3)
= (-27) * a^9 * b^12 * c^6
= -27a^9b^12c^6
= (-3)^3 * (a^3)^3 * (b^4)^3 * (c^2)^3
= (-27) * a^(3 * 3) * b^(4 * 3) * c^(2 * 3)
= (-27) * a^9 * b^12 * c^6
= -27a^9b^12c^6
收錄日期: 2021-05-01 12:02:54
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