若｜x-y-1｜+3(2x-y+1)²=0,则x³y²=

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若｜x-y-1｜+3(2x-y+1)²=0,则x³y²=
若4*8的m次方*16的m次方=2的9次方,则m=

因为：｜ x - y - 1 | + 3(2x - y + 1)² = 0
要满足上式,必须有：x - y - 1 = 0 2x - y + 1 = 0
解上面两式联立的方程组得：x = -2 ,y = - 3
所以：x³y² = （-2）³×（-3）² = -8 × 9 = - 72
4 × 8^m ×16^m = 2^9
2^2 ×2^3m × 2^4m = 2^9
2^(2 + 3m + 4m) = 2^9
所以 2 +3m + 4m = 9
解得：m = 1

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