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D
D
$?\frac 49b^2?$
$? -64\ \mathrm {m^3}?$
$? 81a^8?$
$? a^{3n}b^{3n+3}?$
$?\frac 12?$
32
$? =a^4b^{2×4}?$
$?=a^4b^8?$
$?=(-2)^2m^{3×2}?$
$?=4m^6?$
$? =(-3)^3x^3y^{2×3}?$
$?=-27x^3y^6?$
?$ =-(-\frac 12)^5x^{2×5}y^5$?
?$=-(-\frac {1}{32})x^{10}y^5$?
?$=\frac {1}{32}x^{10}y^5$?